Moon Dubai

, originally disgused as , is a man-made colony constructed on the Moon. It was initially believed to take place in a Singularity in the year 2030 in Dubai, hosted by BB, but was later revealed that the original Singularity was hijacked by BB Dubai and takes place in the year 3017 in a Parallel World that has been synchronised with the SingularityFate/Grand Order - Ordeal Call III: - Chapter 3: Seven Final Bosses, acting as of the Ordeal Call operation in Fate/Grand Order.
The events of Chaldea's visit to this colony are covered in the events BB Presents☆Celeb Summer Experience! ~Dubai's Counterattack~ and .
==Setting==
OC3FakeMap.png|Obscured map of Moon Dubai.
OC3Full Map (Complete).png|Full map of Moon Dubai.
OC3FullMap (Sand Sea).png|Full map of Moon Dubai before water comes to Area A.
OC3FullMap (Water Sea).png|Full map of Moon Dubai, following the reappearance of the sea in Area A after its holder left the contest.
Moon Dubai Areas map.png|Map of the Areas.
OC3Map.png|Moon Dubai seen from the top of Burj Khalifa.
Panoramic Dubai view.png|View of Dubai's skyline.
Moon Dubai Sky.png|Alien sky of Moon Dubai.
==History==
=== BB Presents☆Celeb Summer Experience! ===
====Prologue====
In the Storm Border’s control room, Mordred and Tenochtitlan argue over where Chaldea should go this summer with Mordred wanting to go on a cruise while Tenochtitlan wants to go on a city tour.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Prologue
Ritsuka, who only caught the tail end of the argument, asks what is going on. Mash explains with Chaldea’s summer vacation nearing, director Goredolf Musik wanted to take suggestions for a special vacation settings to the simulator. Unfortunately for Goredolf, Mordred and Tenochtitlan have clashing opinions and have yet to reach a compromise. Ganesha suggests just staying in, but Mordred and Tenochtitlan don’t even spare her a thought.
Ganesha is then all the sudden scanned by the Storm Border’s auto-scan program, much to her and Leonardo da Vinci’s surprise. The scan results say an abnormality has been detected in Ganesha’s Spirit Origin data. She assumes it is just a glitch in the displayed values, revealing the Spirit Origin logs for all MoonCancer Servants are reading their statuses as unobservable. The MoonCancer class has always been mysterious, so Da Vinci wonders what happened.
Goredolf asks Da Vinci if there is a non-zero possibility of this turning into a precarious situation. He tries to recommend putting their summer vacation on hold until this situation is resolved when BB suddenly calls in from her studio.
BB, having heard the Chaldeans’ previous discussion, says she has the perfect place for them to go this summer that will satisfy both Mordred and Tenochtitlan. She invites them to come to Dubai in the year 2030. They will go there by rayshift but since Chaldea’s version cannot travel to the future, BB will use hers instead, using Chaldea’s Coffins as a medium.
She says a guide will be waiting for them when they get there. Also, since this is a special tour by her, they won’t have to follow Dubai’s normally strict local regulation, so they’re allowed to go in a swimsuit or more casual summerwear. With all that said, BB takes her leave.
Da Vinci tried asking her about the error in the Spirit Origin logs for the MoonCancer class, but it is too late. Ganesha thinks it’s best to consider BB the primary suspect, but she doubts she’ll give an honest answer.
Mordred and Tenochtitlan leave the room to get ready, both excited about going to Dubai. Da Vinci, however, is unsure and asks Goredolf for his opinion. Goredolf thinks it should be fine since Dubai isn’t a violent place and trusts Ritsuka to deal with whatever scheme BB has. Ultimately, the Chaldeans all agree to go to 2030 Dubai for their summer vacation.
Later, in addition to Mash, Dobrynya Nikitich, Xu Fu, Ereshkigal, Tenochtitlan, Bartholomew Roberts, Karna, and Percival are all selected to occupy Ritsuka and rayshift to 2030 Dubai.
Dubai Airport.PNG|Airport
Dubai Bus Terminal.PNG|Bus Terminal
They arrive at the airport and are amazed by its splendor. Ereshkigal gets a headache accompanied by a strange feeling that passes off as her suffering from rayshift-lag. However, the heroes notice all the BB-related advertisement particularly the electronic welcome sign, which also appears to be a four-digit counter.
Mash tries to contact Chaldea to inform them the rayshift was successful, but she is unable to connect, which baffles her since they planned on stabilizing communication levels higher than usual for this trip. She uses the sensors in her shield to search for other anomalies and discovers she cannot verify everyone’s Servant classes. It isn’t a big issue, though, since everyone’s existences have already been verified and it shouldn’t affect combat performance. Ritsuka wonders if it’s related to the MoonCaner abnormalities, but Mash says that is still unknown.
A group of citizens then welcomes the heroes to Dubai, having told by BB they’d be coming. Mash assumes one of them is the guide BB had mentioned. One of the citizens corrects her that they only came to give them a warm welcome and their guide waiting at the bus terminal.
Escorted there, the heroes meet their guide: BB Lily.
====Welcome to Dubai====
Ritsuka notices BB Lily’s nametag says Kazura, but BB Lily insists that is the name of an older colleague. She plans to change into something more appropriate later.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 1: Welcome to Dubai
Moving on, she informs the heroes they arrived behind schedule. They were so late that BB had enough to bolster her enthusiasm, promising an event with “countless novel turns never before seen”. The result has her left in a bad way, which BB Lily says the heroes will understand immediately when they see it. She then has the heroes follow her onto the bus.
300px|thumb|Marion Hotel lobby
The bus heads for the Marion Hotel, where the heroes already have reservations. During the trip, Percival asks BB Lily if she has any ideas about their poor comms signal with Chaldea. BB Lily suspects the reencoding process didn’t start on time, but it should have linked up after enough time had passed. She sees no cause for concern though as the rayshift itself is stable and BB will know the way to send them back.
Mash asks her if she can account for the fact they cannot verify the Servants’ classes. BB Lily doesn’t know, nor does she think it matters. She says differences between classes is a really old subject, at least where Dubai is concerned. But what she means by can wait as they are now entering the city proper, so now everyone can see what by BB being in a bad way.
The heroes see Dubai is plastered with signs of BB. BB Lily explains while waiting for the heroes to arrive, BB kicked off the event in her usual fashion. That made her popular with the citizenry and she was elected as ruler of Dubai by popular vote. Now the city is under her control and most of its inhabitants worship her.
The heroes soon arrive at the Marion. BB Lily explains to them they will meet BB herself after they drop off their luggage. She will personally describe Dubai’s tourist attractions to them. Also, since they only just arrived, their schedule will be free until tomorrow once their meeting with BB has concluded. They will meet her at the fountain in the front of the Burj Khalifa, the tallest building in all of Dubai.
They try taking the bus to the Burj Khalifa, but traffic is congested thanks to an anti-BB protest. BB Lily requests the heroes repel protesters in battle. She considers this request within her rights as the tour guide having been granted law enforcement rights by BB when applicable to ensure the safety of the tourist group. The protesters are criminals disturbing the public order and the heroes have BB Lily’s permission, so no issues should arise. The heroes head out to deal with the protesters.
However, upon confronting the protesters, Xu Fu and Ereshkigal notice they have fewer people than they should. Ereshkigal sees Tenochtitlan trying to take Ritsuka on a stroll with her instead of doing her job. She quickly grabs her and demands she work like everyone else.
Hearing those words, Tenochtitlan remembers back before they left, Tezcatlipoca told her Dubai was suspicious and ordered her to find and defeat the enemy before she indulges in self-expression. Keeping her brother’s words in mind, Tenochtitla helps the others deal with the protesters.
With the protesters gone, the heroes can now move ahead to the Burj Khalifa or, more precisely, the Dubai Fountain plaza adjacent to the Dubai Mall. 2030 Dubai has restricted entry to Burj Khalifa to that point alone. There used to be an entrance at the mall, but it complicated things so it was switched to the fountain. Still a bit confused, Bartholomew asks BB Lily for more information.
BB Lily explains Dubai summarizes into five major areas. The southeast isn’t fully developed yet and is where the Marion, the heroes’ accommodations, is located. Southwest is a traditional souk market area. Northwest is the seaside beach area and is a brand new beach resort. Northeast is the business district. At the heart of it all is the downtown area, where the Burj Khalifa, Dubai Fountain plaza, and Dubai Mall are located.
Percival finds a few parts are different from what he reads and wonders to himself if the few extra years account for the discrepancies.
Dubai Fountain Plaza Sealed.PNG|Fountain plaza leading to the Burj Khalfia sealed off.]]
Portable Happiness Counter.PNG|Portable Happiness Counter
The heroes arrive at the front entrance of the Burj Khalifa, but a barrier prevents them from entering the fountain plaza that leads to the high rise itself. BB Lily reassures it is just BB being overly dramatic. BB, wearing a luxurious black dress and calling herself BB Dubai, then appears and welcomes the Chaldeans to her Dubai.
Mash informs BB they have detected several anomalies in their systems ever since they came to Dubai. The biggest of which is their inability to communicate with Chaldea, so Mash asks BB if she has any idea why. BB claims not to know and assumes it is an issue of distance.
Ereshkigal asks her about the electronic signs that have her face on them around the city. BB explains that is the Happiness Counter, a mechanism to detect, quantify, and reflect in real time how much joy everyone has gained from the sights of Dubai. Points are earned by touring the various locales and eating local delicacies. BB tells BB Lily to provide the heroes with a portable Happiness Counter.
After BB Lily gives Ritsuka a wrist watch-esque Happy Counter, BB explains once the counter reaches the maximum the heroes’ missions will be complete. After which, just for them, she will invite them up to the observation deck of the Burj Khalifa. But she suggests they come back when their Happiness Counter is at 9998, then they can break the seal on the fountain plaza and she can personally accrue for them the last point. She promises she will send the Chaldean Servants as soon as the heroes maximize their Happiness Counter.
With all that said, BB tells the heroes to return to the hotel and leaved before Mash can ask her most questions.
Returning to the hotel, BB Lily checks the heroes in and gives them the card keys for their rooms; the entirety of the 60th floor, which is for VIPs, has been reserved for them. She then takes her leave. The heroes agree to meet up in Ritsuka’s room to discuss their situation after they’ve all settled in.
Later everyone rendezvouses in Ritsuka’s room as agreed. Nikitich reassures there are no traps nor Demonic Beasts in the room and Xu Fu has placed Bounded Fields on the entire floor. Percival is the last to arrive, having taken a walk around the building to learn more about the hotel as a whole.
One thing that caught his attention is that floors 7 through 59 are completely inaccessible. Employees told him they’re being used warehouse space, but the elevator doesn’t even stop at those floors. Xu Fu finds it quite suspicious they would prevent the usage of most of the hotel. Percival reassures, though, that floors 1 through 6 are normal as far as he can tell. 
Ereshkigal gets another headache and assumes the thinner air is affecting her head. After taking in the spectacular view of the city from the window, the heroes go to bed, hoping to enjoy their summer vacation starting tomorrow.
====Happy Breakfast====
The next morning, the heroes have breakfast at the hotel restaurant. Afterward, they prepare to head out and tour the city when they see the number on their portable Happiness Counter has gone up 130 points, proving they’ve had a happy morning. They then wait for BB Lily to pick them up when Passionlip arrives.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 2: Happy Breakfast
====Beach Area/Sky (Sea) Hoodlum====
Passionlip apologizes for being late and worries she might get fired, revealing BB asked her to be the heroes’ tour guide around Dubai. The heroes assumed BB Lily would be their tour guide, but Passionlip doesn’t know who BB Lily is. She reconfirms BB selected her as the heroes’ tour guide, having studied all night last night.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 3: Beach Area/Sky (Sea) Hoodlum
Her plan for today is to take the heroes to the beach area in the northwest. She wonders where the chartered bus BB had ready for them is, though, until Percival reminds her where the terminal is. She has the heroes follow her while vowing to herself to ensure everyone themselves.
BB Lily, having secretly watched the previous exchanged, is surprised Passionlip showed up. She remarks botched as her sisters may be they’re still Alter Egos born from the base. She decides if Passionlip (whom she calls the shy, lazy one) is this excited, she’ll leave her be.
On the bus at Bartholomew’s request, Passionlip explains using a map, the northwest is known for its seaside resorts. Even now it is still be developed with new shops and hotels opening all the time. Its distinctive attraction is the Palm Jumeirah, a series of artificial islands, though Passionlip notices the shape seems off. There is also a marina for yachts and other boats.
Dubai Beach.PNG|Beach with Beach House Ehangwhen in the distance.
Beach House Ehangwen Interior.PNG|Interior of Beach House Ehangwhen
The heroes soon arrive at their destination. There they meet Lancelot, Gawain, and Tristan, who take them into the Beach House “Ehangwen”. Gawain admits it was not originally built in Dubai and reveals it was their king who called them all here.
Artoria Pendragon shows herself, pleased to see Ritsuka and Mash. Percival thinks it’s natural for Artoria to be in Dubai, given it’s a city for the rich and powerful. But Artoria tells Percival he is mistaken for casinos are banned in Dubai.
She tried to establish a Dubai branch of Casino Camelot only to find, even under BB’s jurisdiction, Dubai remains quite strict on gambling. She was therefore forced to abandon her plans and set up this beach house instead. But rather enjoy Dubai as an individual, she thought as a king she should provide a lively venue, so she deployed Ehangwen on the beach for the sake of providing the common folk with a peaceful, relaxing establishment.
Lancelot explains he and the others are employees rather than vassals. Tristan says Gareth is working as well, but Mordred is playing hooky, so they’ve been forced to hire local part-timers.
Ritsuka asks if they can do anything to help. Artoria says she has no intention of asking Ritsuka’s party for assistance since they came to the beach to enjoy themselves. But she knows Ritsuka doesn’t want to go out and play without helping someone else. Ritsuka says they need the Happiness Counter to go up after all. Neither Artoria nor Passionlip have heard about the Happiness Counter before.
But understanding Ritsuka cannot enjoy themselves if they’re worried about her, Artoria tasks the heroes while enjoying themselves at the beach with looking out for ways it can be improved, so she can improve the beach house even further. Ereshkigal asks her if she already has something on her mind, but Artoria stops herself from saying anything to avoid unnecessary presumptions. Either way, she leaves it to the heroes.
On the beach, Ritsuka and Mash notice Passionlip lost in thought as she looks at Xu Fu, Nikitich, and Tenochtitlan enjoying themselves. She snaps out of it when Ritsuka calls out to her. She assumes they want a yacht and prepares to get them, but Ritsuka tells her to take a break. Passionlip goes ahead and starts straightening up around the beach.
Ritsuka heads back into the beach house to enquire Artoria about getting a swimsuit for Passionlip. Artoria goes to browse her warehouse for one where she runs into the part-timer girl. She remembers she requested she perform an inventory check and tells her about Ritsuka’s request.
While waiting, Ritsuka goes into the warehouse to see if they can help. Artoria appreciates the sentiment but reassures that the part-timer girl can handle it. Ritsuka tells her the swimsuit is for Passionlip. The part-timer girl correctly surmises Passionlip’s personality from her name alone, as well as her three sizes. She gives Ritsuka the perfect swimsuit for her.
Immediately, Ritsuka heads back to the beach and gifts Passionlip the swimsuit. She is hesitant to accept it though because she thinks there is no swimsuit that would fit her body, but Ritsuka, Mash, Ereshkigal, and Nikitich convince her to put it on. Overjoyed and grateful for the gift, Passionlip puts on the swimsuit and starts playing with the others. Ritsuka sees the Happiness Counter has increased to 1980.
Unfortunately, Passionlip’s fun is cut short when she is nearly hit by Caenis and Mordred’s flyboarding. Percival, seeing they’re dangerously close to the beachgoers, tries to give them a warning, but they ignore him. The heroes conclude this is a problem and go report it to Artoria.
But her reaction suggests she already knew about Mordred and Caenis’s antics. She gave them warnings to no avail and decided to postpone apprehending them since she is too busy managing Ehangwen. The heroes offer their help and devise a plan to capture Mordred and Caenis.
Later on the beach, per the heroes’ plan, Passionlip compresses a large amount of seawater with her Trash & Crush Skill, forcing Mordred and Caenis to stop. Afterward, Percival chases after them, using his shield as a surfboard, to lure them toward Artoria, who was waiting for them at the shoreline. She punishes them by having them serve as guards.
That evening, while the others head back to the hotel, Percival stays behind to help out Artoria. He starts cleaning the beach when he unexpectedly encounters BB Lily. 
BB Lily admits she was worried about leaving the heroes’ first day of sightseeing to Passionlip, so she kept an eye on them from afar, but she sees now she had nothing to worry about. She commends Percival and suddenly gives him a “Job Well Done Stamp”. She reassures him it will wash off on its own in a few minutes. When they're ready to come home at the end, the BB sensor at the airport will check everyone’s stamps and give a present for each collected. But she tells Percival not to keep it a secret from the others.
She admits she actually wanted to show off her swimsuit to Ritsuka, but decided not to when she saw her sister Passionlip's smiling face. Percival is confused BB Lily would call Passionlip sister because he recalls Passionlip mentioned she――BB is her mother. BB Lily is annoyed at being called mother but regardless she leaves, telling Percival to enjoy the sights of Dubai.
Later, Percival returns to the hotel, and everyone enjoys their time together before going to bed.
But Ereshkigal wakes up the next morning to discover she has grown horns. Her Spirit Origin has also downgraded significantly in divinity and upgraded in demonic elements. Ereshkigal realizes to her horrified confusion that she is turning into a Beast.
====Downtown (I)/Dubai Mall====
Ereshkigal, disillusioned about her situation, staggers out of her room. Ritsuka, who had just left their room, immediately sees the horn protruding from her head. Ereshkigal calmy admits she is a Beast and says she is off to destroy humanity. She tries to leave, but Ritsuka grabs her and takes her back to her room, so they can talk about her situation.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 4: Downtown (I)/Dubai Mall
Ritsuka believes Ereshkigal when she says she just woke up as a Beast. They try suggesting asking the others for help, but Ereshkigal asks them to keep it a secret. She needs time to think about her situation, nor does she want to ruin everyone’s summer vacation. Ritsuka agrees to keep it a secret from everyone else, hoping they can both find a way to turn her back to normal.
Ereshkigal worries how they’re supposed to hide the fact is a Beast from everyone when Mash knocks on the door, checking if she is awake. Ritsuka quickly covers Eereshkigal’s horn with a ribbon. Ereshkigal lies to Mash that she had just woken up.
Mash tells Ereshkigal Ritsuka wasn’t in their room when she went to invite them to breakfast, only finding a note on the door saying they went out for a walk and would see them in the lobby later. She had invited everyone to breakfast, in fact. Ereshkigal leaves the room to have breakfast with the others, telling Ritsuka to show up later. Ritsuka is confounded by this whole situation.
Meanwhile, on the Storm Border, Da Vinci is very worried about the communication breakdown. Goredolf, however trusts BB has ensured 2030 Dubai is perfectly safe. He worries about Ritsuka’s mental state and believes this summer vacation is what Ritsuka needed. Kadoc Zemlupus agrees with Goredolf, worried that Ritsuka has been close to breaking.
An alarm suddenly goes off. Jingle Abel Meuniere reports a new signal from where Ritsuka’s team has rayshifted. Cerejeira Elron reports TRISMEGISTUS has confirmed a Beast has appeared ahead of everyone’s rayshift.
Passionlip decides to give the heroes a tour of the downtown area today, specifically the Dubai Mall, and hurries everyone onto the bus.
300px|thumb|Mall
Arriving at the mall, the heroes are astonished by its sheer size when they see BB. She tells them she has come to offer them all a special bonus when she notices Passionlip. She realizes to herself they screwed up by providing the heroes with two tour guides, but decides to pretend it is part of the plan.
Percival asks BB what is this bonus she speaks of. BB, however, replies the element of surprise is important to staying popular, so she instead challenges the heroes to battle instead. She calls out to the citizens in the mall and implores them to watch the upcoming bout.
Though a bit confused, the heroes accept BB’s challenge. But Ereshkigal requests to be left out, saying her head hurts and isn’t feeling overall. Mash tells her it’s no problem, recalling Ereshkigal has been having headaches ever since they came to Dubai. Ritsuka wonders if there is a connection between that and Ereshkigal’s current situation. The heroes fight BB.
BB soon stops the fight and tells the heroes to check their hands, revealing she gave each of them a credit card. They are special credit cards they can use in the mall to purchase anything they want, but with the limitation is they can only buy one item per shop. With that said, BB leaves, telling the heroes to enjoy the mall.
The heroes spend some time perusing the shops, but Ritsuka has yet to buy anything. Bartholomew suggests to Ritsuka if they don’t buy anything for themselves, they can try buying a present for someone else. They pick a few individuals at a random and buy presents they imagine they’ll like. Everyone agrees with Bartholomew’s idea, so Mash starts preparing lots for everyone to draw.
====Downtown (II)/Present for you====
Based on the raffle results, the heroes are divided into impartially selected teams. Team A is Xu Fu, Nikitich, and Tenochtitlan; Team B is Karna, Bartholomew, and Percival; Finally, Team C is Ritsuka, Mash, Ereshkigal, and Passionlip. As a guide, Passionlip doesn’t have a credit, so she’ll just be keeping company, and she says she already got the best present she could wish for yesterday. Everyone’s teams then split off and start shopping after agreeing to a time and place to rendezvous.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 5: Downtown (II)/Present for you
Ritsuka gets lost in thought while walking and thinking about presents. Mash, in a panic, tells them she got them separated from Passionlip and Ereshkigal. Ritsuka isn’t so concerned, though, since they’ll all be back together before long. Mash remembers they agreed to meet at the dinosaur fossils in the event anyone got lost or separated and calms down.
She and Ritsuka try to head for the dinosaur fossils, hoping to find their teammates there. Unfortunately, they only get lost. Ritsuka suggests asking for directions.
300px|thumb|Aquarium
Meanwhile, Ereshkigal finds herself at the aquarium, not knowing why she is there or how long she has been there. She hears a voice in her heard saying this future is a mistaken and the crown of the Prime Species was inherited by the wrong animals. It tells her to protect the destination for souls, the tranquility of souls, and the sanctity of the Prime Species, saying their obligation is to preserve. It tells her an underworld is a land of ends, not terrors, knowing that fact is engraved on her soul. The voice tries to reveal its name, but it just suddenly stops.
Hyperventilating for a moment, Ereshkigal questions what had just happened and staggers off. BB Lily, who was secretly watching, grins at Ereshkigal’s predicament.
Ritsuka and Mash enter a gym, having assumed it was a shop at first. There they meet a young man, who welcomes them to the Extra Sports Gym, and asks the two if they’re tourists from Earth. He is working at the gym temporarily and while he’s only been in Dubai for a few days, he is certain he knows more about the mall than Ritsuka and Mash and offers to help if they need it. He introduces himself as Mister Part-timer.
Mash tells him they’re lost and hoped to ask for directions. Mister agrees to help, but he senses Ritsuka has other things on their mind. Ritsuka asks if it’s normal in Dubai for Servant classes to change.
Mister says changing Servant classes isn’t impossible and is even easy. For instance, anyone can be a MoonCancer as long as they get a petition from BB. But in Dubai, it is better to think Servant classes as not truly mattering as a change in class is rarely a change in substance. What changes is how their surroundings perceive them and given that there are several measures to deal with it.
Ritsuka thinks about Ereshkigal’s predicament and realizes the meaning behind Mister’s words. Mister remarks their gaze has sputtered to life and they are starting to look like a Master. He was already aware Ritsuka is a Master, but so does everyone else in Dubai, thanks to BB.
Changing the subject, he offers to provide Ritsuka and Mash with directions but also show them how not to get lost again. He informs them the signs they’ve seen through the hallways are actually maps accessed via touchscreen and will provide them with a route to whatever location they type in. There is also a Dubai Mall app.
With the advice Mister gave them, Ritsuka and Mash get ready to find the rendezvous point when they’re found by Passionlip. She apologizes for falling behind, but Ritsuka tells her they got lost too. The three of them head for the dinosaur fossils, hoping they’ll find Ereshkigal there.
They found the fossils and proceed to wait for Ereshkigal there. While waiting, Nikitich, Xu Fu, and Tenochtitlan show up. Xu Fu correctly presumes Ritsuka and the others are waiting for Ereshkigal. She and the others have finished shopping, having bought presents for each other. Percival, Karna, and Bartholomew soon arrive, having also finished their shopping. 
Ereshkigal arrives after a little while and apologizes they didn’t buy a present. Ritsuka gifts her a hat, whispering to her it is their improvised plan to hide her horns and replace her ribbon. After putting on the hat, Ereshkigal goes with Mash to buy presents.
Ritsuka notices Ereshkigal dropped the ribbon. They contemplate throwing it away since they don’t need it anymore, but Ereshkigal implores them not to and takes it with her, confessing to herself she has fond memories with it. After she and Mash finish their shopping, the heroes return to the hotel.
There, Ereshkigal trip and almost falls. Passionlip catches her but notices her horns thanks to her hat nearly falling off, though she is unaware of what they actually are. Ereshkigal snaps out of it and fixes her hat to hide her horns. She and Ritsuka then convince the others to go to their rooms, saying they have something to discuss with Passionlip in private.
Imploring her to keep it a secret, Ritsuka and Ereshkigal tell Passionlip about the latter’s predicament. But Ereshkigal informs the other reason they told her everything is because she thought she could answer some questions.
She asks her if BB is the responsible for her transformation into a Beast, noting her transformation only occurred after she came to Dubai, so the prime suspect would have to be the one who invited her. Passionlip, however, doubts BB is responsible, since BB has yet to capitalize on it. It is still possible she is responsible, though, so she remains the prime suspect.
Passionlip asks what she should do from now. Ritsuka tells her to keep Ereshkigal’s situation a secret. They believe Ereshkigal turning into a Beast is a mistake, so they want to keep watching the situation until something happens. Passionlip correctly surmises Ritsuka doesn’t want to disturb everyone’s summer vacation and agrees to keep Ereshkigal’s predicament a secret until further notice. She will also try to find out if BB is up to something, much to Ereshkigal’s appreciation.
====Business District (I)/Where is Beast?====
300px|thumb|Business District
The next morning, Mash informs everyone that the Spirit Origin radar in her shield had detected a Beast nearby, though it’s precise level and location are still unknown. She understands class detection is unreliable at the moment, but the radar’s function to detect Beast is relatively independent, so she doubts it’s a bug. She asks Ritsuka how they should proceed.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 6: Business District (I)/Where is Beast?
Ritsuka says to wait and see for now. Mash agrees, given they have nothing confirmed enough to spur action. Her report is backed by the subjective feelings of the others, but this is a non-zero chance the radar detecting a Beast is a malfunction. Ritsuka recommends they continue Dubai like yesterday while gathering intel.
Passionlip agrees that is the best option and believes they should proceed under the presumption there is no Beast. They are going to the business district today.
On the bus, though, Passionlip gets confused about the business district’s location on the map and that fact the Ferris Wheel Ain Dubai is there when she thought it was at the marina. But she assumes the guidebook just has some misinformation and proceeds to explain the business district.
The heroes soon arrive in the business district where they meet the Amazoness CEO. She isn’t in Dubai as the CEO of the galaxy-wide online retail and delivery company, though. She has opened a new food delivery service here in the Dubai called UniverEats.
She asks the heroes if they are related to the recent ruckus in the district, directing their attention to the notice on the billboards; it is a precautionary Beast alert.
Ereshkigal wonders to herself if these warnings are proof BB turned her into a Beast since she rules Dubai. She also thinks it’s possible she isn’t really a Beast and BB is only making look like one to watch her be troubled and confused, though there is no solid proof.
Passionlip and Ritsuka both assert there is no proof yet of a Beast. Mash concurs as they’re still investigating whether it concerns Chaldea or not and their objective on paper is to enjoy their summer vacation in Dubai. CEO is disappointed as she thought the heroes could provide her with a breakthrough.
She explains lately many of UniverEat’s deliverymen have been attacked. She doesn’t know if a Beast is involved or not, but this situation is abnormal for Dubai, renowned for its safety. Unfortunately, she has no information that could help resolve the matter. Therefore, she has put all her deliverymen on vacation and is instead making the deliveries herself, believing this method will guarantee she will see the next assault.
Ritsuka offers to help her with the deliveries. CEO is grateful for the assistance when she receives the latest order. The heroes go deliver it to the client at a curry shop.
====Business District (II)/From Beyond The Stars====
CEO seems astonished by the client but she snaps out of it and asks her to sign for the receipt. The client signs her name as Mysterious Executor C.I.E.L. CEO asks her if her quest this time around is that of Beast hunting. Ciel says it isn’t so CEO concludes her situation is unrelated.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 7: Business District (II)/From Beyond The Stars
Ciel decides to tip the heroes for a prompt delivery by challenging them to a friendly match to help with her digestion, surprising Ritsuka that she already ate her curry. The heroes fight her and afterward, as thanks for the post-dinner exercise, Ciel gives them some advice for their investigation: start with what is certain and use that to gain further information.
Bartholomew finds Ciel makes a good point and asks CEO for data on the victimized deliverymen, telling her the more details she can provide the better. CEO says she’ll prepare a PowerPoint presentation, providing a map of the assault locations and she would like to include a detailed report on the meals but she isn’t that knowledgeable. Passionlip tells her to leave that part to me. Percival says he can fill the gaps where needed.
After a while, CEO presents the complete victims list and the heroes immediately see the commonality between each victim. Ciel, seeing they found a clue, takes her leave of them to check one last restaurant. With the commonality now know to them, the heroes devise a plan to bait the culprit.
Per their plan, the heroes limit the types of dishes that can be delivered. They deliver an order for knafeh followed by an order for luquaymat.
Nikitich soon realizes from Passionlip’s description of each meal that the deliveries have been limited to sweets. CEO confirms as much, revealing all the victims were delivering sweet meals. But she is unfamiliar with local cuisine, so she couldn’t have figured out the connection by just looking at the data. It is for that reason they’re the only ones in Dubai exclusively delivering sweets, meaning they have the highest probability of being attacked.
Then, just like they expected, the heroes are ambushed by the culprit: a mysterious entity in black armor. They fight them; Ritsuka feels there is something familiar about them.
They defeat the culprit, causing their helmet to break and reveal their face. Mash immediately recognizes her as Ecchan, which Ritsuka had already felt was the case. Mysterious Heroine XX Alter remembers she was called Ecchan back before she started wearing quantum armor in an earlier season.
CEO notes XX Alter seems to be in a daze and asks how they should proceed. Ritsuka believes XX Alter wouldn’t have done what she had done without reason and decides they should let her talk for a while. Interrogating her, Tenochtitlan asks XX Alter how she ended up hunting sweets.
While she cannot remember exactly when, XX Alter recalls she was swallowed up by a black hole at unknown coordinates. In keeping in line with life support protocols, the quantum armor went semi-autonomous, so she fell unconscious. Fortunately, she drifted to Dubai, but she lacked the energy for a full reboot. Her armor thus automatically gathered supplies for that purpose, mainly sucrose——the main ingredient in sugar.
The heroes understand she needed sugar to save her own life, but they cannot approve of stealing from others. XX Alter says her sensors only gave her a simple outline of the situation. But she never imagined a delivery service like UniverEats could exist. Also, the sweets she encountered weren’t in her database, which was the main factor for why her self-judgement program went haywire.
She apologizes for what was more or less out of her control. CEO accepts her apology seeing there wasn’t any major damage and this case was completely unrelated to the Beast. XX Alter wants to hug her out of gratitude, but she lacks the calories to even stand. Ritsuka orders a ton of Arabian desserts from UniverEats for everyone to celebrate.
Bartholomew receives his order from the part-timer girl when he runs into BB Lily. She rewards him with a stamp and leaves.
After eating, XX Alter joins the Chaldeans at CEO’s suggestion to repay them for helping her. They return to the hotel and get a room for XX Alter. Everyone heads straight for bed, cramping up one set of elevators, so Ritsuka takes an available one with Ereshkigal and XX Alter.
During the trip up to the 60th floor, XX Alter, knowing the Chaldeans are looking for a Beast, gives Ritsuka a villain radar, which seeks out and pinpoints villains above a certain level. Ritsuka notices it is already a blinking red.
Ereshkigal starts to panic a bit and insists the radar detected her as a villain because she is a goddess of the underworld and her alignment is Chaotic Evil. XX Alter agrees to keep quiet about what Ereshkigal’s reaction implies, but she advises her to improve her deception as characteristic traits are leaking out and they will be detected by the radar at such close range. She says Ereshkigal smells of the Servantverse.
Meanwhile, the others have figured out Ereshkigal has become a Beast and Ritsuka and Passionlip are trying to hide that fact. They agree after some deliberation to not let Ritsuka know that they caught on. They all want to enjoy their summer vacation, so they will let Ritsuka handle the situation at their discretion and not interfere unless the situation truly becomes dangerous. 
They agree BB is the prime suspect for why Ereshkigal has become a Beast. But the only surefire way to meet her so they can ask her question is to complete her mission. Ritsuka continuing the tour as a normal may be partially due to that. Everyone agrees to continue to investigate and report their findings to one another while keeping Ritsuka unaware.
====Desert Dubai (I)/Bane====
The next day, Passionlip decides they will tour Dubai’s southernmost deserts today. But Bartholomew asks her if the city is still on Beast alert, so Passionlip checks with the receptionist. She confirms the alert is still up, but she thinks it isn’t their problem. Percival, knowing agreeing would be out-of-character for a Chaldean Servant, replies that they still need to remain cautious.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 8: Desert Dubai (I)/Bane
Ereshkigal whispers to Ritsuka what XX Alter said yesterday has made her think they should plan today’s action better. Ritsuka, however, wants to continue as normal, doubting the Beast will claim any victims if it hasn’t already. They then announce they will stick to today’s schedule, suspecting the desert may have intel on the Beast.
Percival realizes Ritsuka’s intentions, so he tells the others to wait for him on the bus, saying he forgot something in the restaurant.
Later, the heroes take the bus to the desert entrance, where Passionlip announces they will tour the desert on a 4WD. The driver, Barghest, quickly arrives and urges everyone to get in the car, promising an exciting desert rally to the most scenic spot in the desert. She does warn them, though, she will not be slowing down, comparing the experience to a roller coaster.
The heroes eventually reach the spot Barghest spoke of providing them with a panoramic view of the desert in every direction.
Barghest gets a phone call and is informed by the other person on the line that they have located it. Seeing no point in hiding it, she informs the others that lately there have been sightings of a wicked entity that corrupts and ruins heroes. The call she received was from someone who located the target, so she’ll be heading there to arrest them.
Ritsuka, thinking it could be a lead, asks Barghest if they can help. Mash confesses to Barghest they came to the desert with the secondary goal of gathering information about the Beast situation in the city. Barghest recalls hearing mentions of that and catching its faint smell. The scent suddenly changed today, though, oscillating between getting stronger and weaker.
Ereshkigal notes to herself that the scent was first stronger because she is nearby and grew weaker thanks to the spell XX Alter adjusted yesterday. But she desperately hopes the scent Barghest smelled is another scent unrelated to her.
With everyone agreeing to help her, Barghest drives them all to a cavern which is the enemy’s lair, according to her source. There they find Jacques de Molay, who denies she has done her usual devil summoning rituals. She tried but there was no reaction, which Ritsuka presumes is because they’re in the future. She also claims ignorance about corrupting heroes when Okada Izou shows up. 
Immediately he asks her for another loan, accidentally revealing she has been running an illegal moneylending operating. The Chaldeans realize that is what corrupting and ruining heroes entails, disappointing Ereshkigal it wasn’t the information they wanted. Nevertheless, Barghest says they still need to apprehend Molay for her crimes. Molay realizes Barghest will not ignore this, so she convinces Izou to fight alongside her.
The two of them are defeated and apprehended by Barghest. Ereshkigal asks Molay if she knows anything about the potential Beast situation in Dubai. Molay all but admits she knows nothing, much to Ereshkigal’s disappointment. Mash tries to cheer Ereshkigal up but almost lets slip that she knows about her predicament.
Molay is surprised, however, that the heroes found her lair as she was sure she kept a low profile. Barghest reveals she wasn’t the only one searching for her. Zenobia and the Queen of Sheba show up, the former of whom invites the heroes to her camp to thank them for bringing an end to Molay’s illegal moneylending.
====Desert Dubai (II)/Queen and Camel====
At Zenobia’s camp, Bartholomew asked what happened to Molay. Sheba explains after her penalty fine was collected, Molay was bound under a formal contract and put to work in the bank. The only issues with her were her unlawful interest rates and operating unlicensed. So long as she follows procedure, there is nothing wrong with keeping her around. Sheba thinks it’s better than having her be unproductive.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 9: Desert Dubai (II)/Queen and Camel
Zenobia apologizes they haven’t seen any signs of a Beast out in the desert and, until now, they were more busy cracking down on Molay’s illegal moneylending. However, not everything in the desert has been solved, and that is the fact they lack enough competitors for their upcoming camel race.
Due to riders falling ill and camels getting injured, they are in urgent need of replacements for three teams. Zenobia, therefore, asks the heroes to compete in the race, certain they will do well with the crowd and make the race exciting. She will not require them to win first place, but she will not deny them the prize they do take first place.
Nikitich wishes to take part, but she doesn’t have a camel, so she asks if she can use her steed instead. Sheba reveals people can participate with their own mounts as she uses illusions and perception control spells to make them all look like camel. Additionally, when her illusions turn something into a camel, it converts its speed into camel numbers, so no one has an unfair advantage. Nikitich decides to enter the race in that case.
Mash recalls Xu Fu has her own camels. Xu Fu admits to her own embarrassment that they spawned for no discernable reason when she turned into her summer Spirit Origin. Sheba eagerly demands Xu Fu participate. Seeing Sheba is unlikely to take no for an answer, Xu Fu agrees to compete.
Percival thinks Mash can fill in for the third slot, considering she has Galahad’s Riding Skill. Mash admits that is true, but points out to Percival he can as well. Percival tells her if it’s her though, Ritsuka can ride with her and since winning isn’t required, they can participate for fun. Sheba says passengers are allowed.
Ritsuka decides they want to ride a camel. Mash is surprised by their eagerness, but points out they do not have a mount of their own. Sheba reassures her they can rent of her camels. Mash agrees to participate in the race with Ritsuka.
Later, everyone gathers for the race hosted by Jaguar Man and Sheba. Sheba explains the rules are pretty standard for a race. Attacking other camels is forbidden, but the riders can be disturbed in any way.
Jaguar Man next introduces the participants: Zenobia, Mash with Ritsuka, Xu Fu, a jockey robot, Nikitich, Carmilla, Takeda Harunobu, and Red Hare. On Sheba’s mark, the race then begins. 
Xu Fu somehow wins even though she was just leisurely riding and stuck in her own world imagining herself riding with Yu Mei-ren oblivious to what was happening in the outside world.
Later that evening, everyone celebrates at Zenobia’s camp. Percival mentions he was running errands on his own, so he didn’t see the whole race, but he did manage to catch the finish. The festivities continue into the night.
Zenobia approaches the heroes to exchange a few words with them before she turns in for the night. Ereshkigal asks her again for information about the Beast or anything out of the ordinary within the vicinity of Dubai. Zenobia says she does not, but she does vaguely feel there is something fundamentally off with the desert despite its pleasantness.
Returning to the hotel, the heroes discuss today’s findings. BB remains the prime suspect, but Tenochtitlan questions if it is possible to turn someone turn into a Beast and if BB possesses such methods. Passionlip doubts it would be impossible for BB, seeing as how her original self was a mass of bugs.
In her room, Ereshkigal asks XX Alter what she means she smells like the Servantverse. XX Alter answers there is no real meaning to it, only that Ereshkigal has that aroma to her. She knows nothing more than what she said, much to Ereshkigal’s disappointment.
Passionlip admits she tried to contacting BB in hopes of getting information, but she couldn’t get any response whatsoever. She doesn’t know if the line was disconnected or purposefully shut down.
Ereshkigal remembers she has noticed for the last few days Dubai lacks something every place should have——a stench of death. She cannot detect any trace of it. She doesn’t know the reason for it, but she is certain something is wrong with Dubai.
Percival confesses he has also felt there was something wrong with Dubai for some time, which is why today he kept an eye out for specifically local anomalous conditions. He discovered the map in the guidebook he received as a gift at the mall doesn’t match the map he brought with him. There are no stark differences, but the terrain is slightly changed and the locations of buildings have been swapped.
Xu Fu thinks it’s possible Percival’s memory is mistaken, not mention he failed to account for the fact in 2030. Percival admits that is a possibility, but Passionlip, who also studied up on Dubai, had the same puzzled reactions as he did. Passionlip felt Dubai was strange, but she thought her memory was mistaken.
With geographical misgivings in mind, Percival says he hoped to find out more about Dubai today. He therefore gave this task to Mochizuki Chiyome and Fuuma Kotarou, who he met at the restaurant this morning. Both ninjas reveal themselves.
Chiyome reports there is a formidable Bounded Field surrounding the area of the Burj Khalifa. Kotarou reports he made a survey of the desert’s outer rim during the camel race. Percival confirms that is why he didn’t participate in the race, needing to focus on his investigations. He and Kotarou discovered they cannot leave Dubai.
After the ninjas leave to continue their task, Percival expresses his hope Ereshkigal’s Beast transformation is possibly a product of happenstance and will soon disappear. Mash agrees but says they cannot afford to relax their guard after coming this far.
Tomorrow is the last day of their Dubai sightseeing tour. They need to first collect information about the Beast so they can safely deal with Ereshkigal in case something happened. Information about Dubai itself with attention to its falsities will also be helpful. Plus, regardless of what happens regarding to the Beast, they need to keep what they’re doing secret and bring this summer to a pleasant end and help reinvigorate Ritsuka and everyone else.
====Old Dubai (I)/Golden Prince====
Old Dubai.png|Old Dubai
Duryodhana Summer Home.png|Duryodhana's summer home
The heroes go to Old Dubai for the final day of their tour. They peruse the souks but it quickly becomes clear to them that shopping at one isn’t as straightforward as one might think and there is a particular way to go about it. Karna confesses he met an expert regarding this matter when he wandered into the area during his run on the beach a few days ago.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 10: Old Dubai (I)/Golden Prince
He takes them to Duryodhana’s summer home; Ashwatthama is there as well. Ritsuka asks Duryodhana how to shop at a souk. Duryodhana tells them the key is haggling. Passionlip recalls the guidebook said that as well, as not everything has a price tag on it and you’ll lose money fast if you pay full price on everything.
Duryodhana decides to go shopping with the heroes to demonstrate how to haggle. But he finds the group is too large for the narrow market streets and his liking, so he wants some to stay behind and guard his gold. Xu Fu, Percival, and Bartholomew decide to stay. Duryodhana has everyone else follow him to the nearest gold souk.
Sakata Kintoki just happens to be the shop’s manager. Duryodhana tells inspecting both products and people is the basic of negotiation. He surmises he can break Kintoki with a test of strength and so proposes to him he give them a discount on a necklace if they win a sumo match against him, but if he wins, they must pay full price.
Nikitich wishes to be Kintoki’s opponent, but Kintoki vehemently refuses due to how nervous he gets around voluptuous women. He instead wants to fight Duryodhana. He already had several matches with Bhima, so he wants to know how strong his rival is.
Duryodhana contemplates accepting Kintoki’s challenge, feeling he has no other option, when Karna offers to fight instead. Ashwatthama thinks based on Kintoki’s build he should go instead, but Karna insists sumo isn’t only about power and weight. Impressed, Kintoki accepts Karna as his opponent and their bout begins.
However, later into the fight, he calls for a time out, having finally realized they drew their weapons even though they agreed on sumo wrestling. It seems he and Karna had done so subconsciously. Nevertheless, Kintoki declares Karna the winner and gives a discount on the necklace, as agreed. After buying the necklace, the heroes go to the spice souk.
====Old Dubai (II)/Spicy Dish and...====
The heroes go to a shop run by Amour. Duryodhana asks for the best flavor for royalty such as himself. Amour shows him the best and hottest flavor her shop has. Duryodhana sees while it isn’t overly price it is still expensive so he demands she lower the price. Amour agrees to lower the price, but first they must demonstrate their desire for spices through a spicy curry eating challenge.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 11: Old Dubai (II)/Spicy Dish and...
Duryodhana teaches Ritsuka that sometimes the salesman offer their own ideas for your discount. Playing along is usually the right answer, but it’s most important you ensure you get the greatest benefit from the conditions. Considering this, Duryodhana accepts Amour’s challenge.
Amour explains her challenge is a test of whether or not someone can eat a plate full of curry made with spices from her treasure trove. Ashwatthama readily volunteers himself to eat the spicy curry.
Duryodhana asks Amour in numerical terms how hot the curry is and how much the discount will be. Amour says the curry is on the milder side, around level 10, and the discount is around 20%. Duryodhana demands she double the heat in that case and in exchange he will buy her goods at half price if and when Ashwatthama clears her challenge. He teaches Ritsuka the trick is to pretend you’re okay with the salesman’s idea and push for more benefits.
Amour accepts Duryodhana’s conditions and serves Ashwatthama the curry once it’s ready. Ashwatthama takes one bite and is instantly nearly overwhelmed by the heat. But he refuses to give up and keeps on eating. He eventually finishes the plate, so Amour agrees to sell her spices at half price.
Duryodhana next takes everyone to a fabric shop. Ritsuka puts the bargaining techniques Duryodhana to use and buys a set of cloth pouches. They plan to give them as souvenirs to Chaldea’s staff when they get back.
The heroes return to Duryodhana’s summer home. Ritsuka sees the Happiness Counter is now at 9370, so the heroes are getting close to the target figure of 9998. They plan to go to the fountain plaza tomorrow.
====Last Night/Preparation====
That night BB Lily pays Karna a visit in his room and rewards him with a stamp. With that, BB Lily proclaims her job has come to an end. Karna calls her out for barely being a guide and asks what is this job she speaks of. BB Lily says it is an insurance policy, warning more than a few things are waiting around the corner.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 12: Last Night/Preparation
Meanwhile, Ereshkigal finds herself unable to sleep with everything on her mind. She goes to the hotel gym, hoping exercise will help her relax her mind. There she meets the part-timer boy and girl, with the girl permitting her to call them Mister and Miss. At Miss’ behest, she starts running on the treadmill.
While running, she hypothetically asks the part-timers what plausible reasons would be there for someone to suddenly become a Beast without realizing why. She inexplicitly feels she can trust the two of them.
Mister surmises Ereshkigal worries that this hypothetical someone’s hidden nature as a Beast had been awakened by some ancestral regression, but he finds there are some doubts in this thesis. Miss concurs and presents another idea: it is the result of an accidental collapse with something from another realm. Mister adds Dubai is a special place, so there is a remote possibility Ereshkigal synchronized with her alternate self. Therefore, what happened to Ereshkigal isn’t her fault, so if she doesn’t approve of the Beast’s Logos, the synchronization will stop on its own.
The part-timers soon bring a stop to Ereshkigal’s exercise. Ereshkigal can’t remember what they were talking about, but she somehow feels a lot of weight has been taken off her mind and body. She can go to sleep now. The part-timers tell her to come again if there are any problems, saying they can give advice if only to point her in the right direction.
====Dubai Fountain/or "At The Top"====
300px|thumb|Fountain plaza no longer sealed off.
The next day, the heroes go to the fountain plaza and see the seal from before is no longer present. Ritsuka reveals now that their Dubai tour is over that they knew what the others were up to. They admit this now because if BB Dubai isn’t on Chaldea’s side, then their silent agreement to keep the secret would only get in the way.Fate/Grand Order: Cosmos in the Lostbelt - BB Presents☆Celeb Summer Experience! - Section 13: Dubai Fountain/or "At The Top"
The fountain turns on and a crowd of upper-class citizens appear to congratulate the heroes. BB Dubai appears and congratulates them as well. But before she takes them to the Burj Khalifa’s observation deck as promised, she has them commemorate their success through an exhibition match so to give the people of Dubai a chance to see mankind’s final Master in action.
The heroes win the exhibition match and the Happiness Counter goes from 9998 to 9999. But the moment it does, Ereshkigal suddenly collapses. 
All of Dubai seems to celebrate the fact the heroes reached the Happiness Counter’s maximum. The upper-class citizens congratulate them, proclaiming they can finally bring things to an end now that mankind has fulfilled its tasks. The Happiness Counter shows it has hidden digits, revealing its maximum was exponentially higher than 9999.
The upper-class citizens declare the total amount of mankind’s joy has been filled, meaning all their unfinished business has been completed. Thus, mankind no longer has any right now. The upper-class citizens congratulate mankind on “graduating”.
They draw closer to the heroes, eliminating any obstacles in their way without any sign of hostility. Fearing for their lives, the heroes decide to escape, but they cannot clear a path without hurting citizens. Fortunately, Passionlip notices people are pouring out of the mall, so she realizes the Burj Khalfia must be empty. The heroes hurry to the Burj Khalfia.
They board the elevator and take it up. Mash wonders if what happened was part of BB’s scheme because none of her previous schemes had ever put Ritsuka in real danger before.
Passionlip is shocked by what she is seeing outside, prompting the others to look as well. They see, much to their shock, that they were never on Earth. but the moon.
300px|thumb|BB Dubai's room
They reach the top and BB Dubai welcomes them to her personal room. She thanks them for maxing out the joy parameter. It was something AIs could never do, which is why she enlisted the help of Ritsuka, a human from the 21st century. Thanks to them they can finally start the election for the end of humanity.
Ritsuka questions if she even is BB, to which BB Dubai insists she is. She then recalls the heroes’ original purpose was to return to Chaldea. But she finds this funny because she reveals they’re actually in the year 3017 and they’re on Moon Dubai, a colony constructed on the moon. Furthermore, there are no humans left on Earth.
===Archetype Inception===
====The AI Trapped on the Moon====
Ritsuka assumes BB Dubai means the Earth is still bleached. But BB Dubai reveals they’re in a different timeline where Chaldea never went to the South Pole and so the Bleaching never occurred. The Earth is therefore normal in this timeline except for the fact there are no humans left.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 1: The AI Trapped on the Moon
Mash refuses to believe humanity went extinct in this proof as the Human Order Foundation Value producing a value, albeit an undesignated one, proves humanity hasn’t gone extinct. BB Dubai confirms humanity is still flourishing despite no longer being on Earth. But humans from the precursor species do not belong in her world in her era.
BB suddenly flies into the room and apologizes for getting the Shift destination six days wrong. She then notices BB Dubai and questions if she is a second BB unit from a future Moon Cell. BB Dubai compresses into a ball and sends her into outer space, saying she will never return to Earth. She sees no point in keeping the heroes around now that they’ve maxed out humanity’s joy parameter, so she will return them to Chaldea.
All the Chaldean Servants suddenly start to be unsummoned. BB Dubai explains Heroic Spirits have no power in the year 3017 because nobody remembers them anymore and being forgotten is tantamount to not existing. When the city’s layer switched to Moon Dubai, it denied all Heroic Spirits older than 2400. Only Ritsuka and Mash will remain. XX Alter notes to herself she doesn’t belong to either category but decides not to say anything.
Xu Fu, Percival, Karna, and Nikitich try to fight and defeat BB Dubai before the automatic unsummoning process is completed. Unfortunately, BB Dubai proves hardier than expected. She compresses Xu Fu, Tenochtitlan, XX Alter, and Nikitich and collects them because she liked their respective shapes.
But she questions why Ereshkigal is being automatically unsummoned, as no one unconscious should be able to resist the process. Ereshkigal becoming a Beast was not her doing. Getting involvement with Beasts isn’t her job as mankind’s continuity management AI, but it does her no good to have remained ignorant of Ereshkigal’s predicament. She calls Kazuradrop out for having holes in her report.
Kazuradrop, whom the heroes have known as BB Lily, appears and insists she wasn’t at fault because the abnormality in Ereshkigal’s Spirit Origin couldn’t be taken at face value. Observations taken from a distance can only give so much. If she had been the guide as originally planned, she had been able to provide a more accurate report. But thanks to Passionlip appearing, she had to lay low instead and blames BB Dubai for overlooking the guide assigned by Chaldea’s BB. Passionlip finally recognizes Kazuradrop as one of the Sakura Five like herself.
With the unsummoning process still active, Bartholomew recommends they fall back for now. Karna and Percival however want to eliminate BB Dubai before they disappear and implore Ritsuka to use a Command Spell. Ritsuka is hesitant though because of Bartholomew’s warning.
In response, BB Dubai declares she can erase their Spirit Origin data from the Throne. Passionlip implores everyone to run away as she recognizes BB Dubai is about to unleash the observation light of the Moon Cell——a special process of event confirmation that overwrites Spirit Origins. BB Dubai reassures Ritsuka will not be harmed, for only Servants included Mash are unnecessary to her, and she unleashes the Moon Cell’s observation light.
Everyone except for Ritsuka, Mash, Ereshkigal, and Bartholomew is eliminated; Passionlip had sacrificed herself by using her own body to protect Mash. BB Dubai is quite cold about Passionlip’s demise, seeing the Sakura Five as unneeded by definition since they are BB’s excised malignancies. She assumes her Master agrees.
Miss appears now wearing a white Mystic Code, calling the Sakura Five more superfluous than unneeded and compares them to recreational material. She believes one should discard such things at the first opportunity if they have a goal they want to achieve. She greets the heroes as the last remaining humans and asks if they enjoyed sightseeing in Dubai.
BB Dubai assumes her Master is letting Mash go out of respect for Passionlip. She is fine with that and demands Ritsuka and Mash leave the throne room, for only the chosen ones belong here. She tells them to take the elevator back to the surface, warning she will not hold back if they refuse.
Kazuradrop asks BB Dubai why Ritsuka still has a Servant. She can understand why the Beastified Ereshkigal would remain, but she doesn’t understand why Bartholomew hadn’t been eliminated. BB Dubai replies it is because he was the only one who said anything productive, but it’s mostly because he is not a threat.
She tells Mash, Ereshkigal, and Bartholomew that will be granted the honor of witnessing the upcoming election while Ritsuka is allowed as a special participant. As for what they are voting on, it is how mankind will end.
Humanity went extinct by the year 2999 through self-destruction. BB Dubai thought such a conclusion was disappointing and meaningless, so she decided if she can’t stop them from going extinct, she’ll make their extinction meaningful. Thus, she summoned numerous candidates to vote on the matter. Kazuradrop is one of them.
Kazuradrop confirms her endorsed method of extinction is famine and vows not to lose to the other candidates. BB Dubai is pleased by her determination and tells her to snap up the people of Moon Dubai’s votes. Ritsuka, disturbed along with Mash, asks BB Dubai what is talking about.
BB Dubai explains she is talking about the elections, revealing Moon Dubai was rebooted for this purpose. She also reveals it is why the MoonCancer class was created: to gather the destroyers of humanity and determine through the elections who is most deserving to be the “final boss”. She tells the heroes they are free to obstruct the elections if they want, considering any MoonCancer who’d lose to them as undeserving of final boss status.
She again demands they leave the room and tells Kazuradrop to escort them to the first floor. The heroes follow Kazuradrop to the elevator with Ritsuka carrying the still unconscious Ereshkigal.
Inside the elevator, Kazuradrop commends Passionlip for her quick response to the Moon Cell’s observation light. Mash thinks she should have shielded Passionlip instead of the other way around. Kazuradrop tells Mash that Passionlip knew she’d try to protect everyone, so she stepped forward to stop her. No barrier can protect against the Moon Cell’s observation light, so the only options are to run or hide. Only Passionlip knew that, which is why she used as a shield.
Kazuradrop tells the heroes they’re enemies once the elevator reaches the first floor, and she wants them to keep that in mind as they listen to her. She informs them Moon Dubai’s citizens of Areas E, F, and I have surrounded the elevator, warning they’re all pre-humanity AIs that will try to slaughter them if they find them. She cannot explain any further because Area B (the current location) is under BB Dubai’s jurisdiction. Her every action is being watched and explaining any further would qualify as an electoral crime.
She recommends the heroes run east as fast as they can once the elevator reaches the bottom. She warns against entering the mall as the MoonCancer of Area E, previously the mall, is currently the strongest final boss candidate. Their best chance of survival is the labyrinth of tall buildings that compose the office district. Kazuradrop advises they investigate the region and learn the truth of Moon Dubai for themselves, for knowing more about the situation will increase their chances of survival.
Bartholomew thanks Kazuradrop but cannot tell if she was trying to explain the rules to them or bolster their chances. Kazuradrop insists she was being objective and notes they’re almost at the bottom. She says goodbye to Ritsuka and Mash and welcomes them to the Archetype Inception, the succession battle for the new Prime Species.
The moment the elevator door opens, the heroes find themselves beset by the citizens of Area, E, F, and I. They breakthrough and start heading for the office district like Kazuradrop advised. But they are targeted and struck by homing missles.
====Mad Roland ~Nudey Road~====
300px|thumb|Office district
Fortunately, they survived thanks to Mash using her shield and Ereshkigal deploying a gravitational field to change the trajectory of the third wave of missiles. Ereshkigal is now awake and possesses a different look and attitude.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 2: Mad Roland ~Nudey Road~
Bartholomew asks her if she is the Ereshkigal they’ve always known. Ereshkigal replies she isn’t sure yet, but she is definitely Ereshkigal. For now, she asks Ritsuka to summarize what happened since she collapsed. Ritsuka proceeds to summarize what had transpired.
Ereshkigal now understands the real reason for the sickening feeling she had while sightseeing. It is something anyone connected to the underworld would notice notice. But ignoring that, she informs the others they’re surrounded.
The heroes are ambushed by Roland and his insane band of chevaliers. They fight him, but he doesn’t budge at all. Ritsuka is confused as they thought all the Servants had been unsummoned. Roland reveals he isn’t the same Roland they know.
Suddenly, Astolfo descends from above. He introduces himself as Astolfo Grimaldi, one of the MoonCancers summoned to Moon Dubai. He prepares to kill the heroes when his Master Anthony demands both sides to stand down and admonishes both Astolfo and Roland for not obeying him when he said to open up with a discussion.
Astolfo says talking can wait until after he and Roland have beaten the heroes, reminding his Master their motto is “Don’t think, feel.” Roland concurs, warning Ritsuka that here the most rational first. But he ironically also tells him to think long and hard about the implications of this as they fight. Astolfo violently punishes for his word as thinking is forbidden and fights the heroes.
To his surprise, though, the heroes are stronger than he thought. Bartholomew and Mash both agree to capture him and question him for intel. Astolfo, fearing his reason will come back if he is lectured at, begs Roland to save him.
Roland intercepts Bartholomew and Mash, knocking them away with the force of his landing. He then receives a magical energy backup similar to that received from a Command Spell. Bartholomew has his suspicions about what it might be.
300px|thumb|Kingprotea appears
Reinvigorated, Astolfo calls upon his chevaliers to help him kill the heroes, ignoring his Master’s orders to apprehend them. Roland approaches the heroes to kill them, not noticing the looming shadow. Mash tries to warn him, but he ignores her warnings when he smashed by Kingprotea’s fist.
The chevaliers recognize her as they’re swept away by her. She is relieved she finally got to meet up with Ritsuka. She tells them to wait until she has finished “cleaning up” and continues sweeping away the chevaliers. Astolfo tries to take revenge on her for what she did to Roland, only to be sent flying into the distance. According to the chevaliers, this was the twelfth time he was defeated in one hit. Protea finishes “cleaning up” the remaining chevaliers.
Later, as Protea carries them, the heroes recount what has happened to thus far. Ritsuka asks her how she got to Moon Dubai. Protea recalls she was meant to be sent to 2030 Dubai by BB ahead of Ritsuka to serve as a boss battle for their tour. Instead, thanks to BB Dubai, she ended up in 3017 Dubai, presumably to participate in the Archetype Inception, but she vehemently refuses to be any kind of final boss.
She is certain BB meant for her and Passionlip to serve as the bosses that would cap off Ritsuka’s tour of Dubai. But it was meant to be for a fun summer game, not a competition about mankind’s destruction. Regardless, she has had no communication from BB, even though they’re on the moon.
While she was unsure about what to do, Astolfo’s people took over the office district. Day after day, they kept talking about killing the Master of Chaldea, so she sent them scurrying every time they had a gathering. She has been on Moon Dubai for six days, defeating any faction who dared challenge her until they stopped bothering.
Ritsuka thinks they can head straight back to the Burj Khalifa with Protea keeping them safe. Protea, however, reveals she cannot go outside the office district because the ground and buildings of the other areas are too easily destroyed. Meanwhile, the ground and buildings of the office district don’t even crack even when she punches them as hard as she can. 
Bartholomew doesn’t understand why she is carrying them to another area then. He thinks they’ll be safer in the office district with her and that they can hide out in one of the buildings. Protea, however, reveals none of the buildings have entrances, so she is bringing the heroes to an area with proper accommodations——the Marion Hotel.
But suddenly she starts getting drowsy. She confesses ever since she came to Moon Dubai, her Skills consume more magical energy than normal. When she reaches her limits, she gets sleepy and falls unconscious for seventeen hours, but her body remains tough as always.
Protea falls asleep, but Mash says she should wake up once her internal supply replenishes. The chevaliers resume their hunt for Ritsuka now that Protea has fallen asleep, so the heroes rush to the hotel to discuss their next step.
Battling several chevaliers, the heroes eventually reach the hotel only to discover it is now run by robots. A mechanized employee informs them that they can no longer accommodate them. The hotel has become the property of Alvatron Inc. and the area is under the control of Sir Thomas. Any human who has not mechanized their body has no rights.
Mash recognizes the mechanized employee’s voice as the receptionist who saw them off this morning. The mechanized employee reveals that was a temporary camouflage to ensure a steady transition toward the elections. Now that the elections have begun, they will obey Sir Thomas’ commands to capture and mechanized the Chaldeans.
Automatons surround the heroes. However, the mechanized employee informs them that it and the other employees want to bear responsibility as employees of Alvatron Inc. entrusted with their accommodations at the Marion Hotel. They are not combat AI and lack the equipment to fight the heroes, so their only resort is to inform the soldiers of their appearance at the hotel. They will execute said action as soon as the conversation ends.
Mash thanks the employee for not just the consideration but for the hospitality they provided until now, adding she’d like to visit again someday. The employee informs the soldiers and tells the heroes they were all wonderful guests. Ritsuka thanks them for taking care of them these past seven days before escaping with the others.
Outside the hotel, Ereshkigal questions why Ritsuka and Mash even bothered thanking the employees when they were just kicked out. Bartholomew tells her the employees could’ve reported them the moment they entered the hotel or lured them to the soldiers. But they didn’t do that because, as humans, they put their pride first. Ereshkigal realizes despite their bodies being mechanized, they still retain their humanity, finding Servants to be much the same.
The soldiers arrive and move to capture the heroes. The heroes repel them as they try to return to Area F (the office district), but they’re far more coordinated than expected and block the path to the western bridge leading to Area F.
Mash thinks they should break through the blockade, but Bartholomew knows it is a trap and the enemy wants them to crossing the bridge. Regretfully, he can only propose they head for the desert to the east, even though going out there on foot would result in them drowning in quicksand. It is unfortunately their only option, as the enemy has completely blockaded the western area.
On a different topic, Ritsuka says they could use some water when Mister suddenly appears and offers them a bottle of water. He agrees with fleeing to the desert but says going there on foot isn’t an option. He therefore informs the heroes of a dock at the east edge of Area F, where they should find boats. The eastern bridges aren’t sealed off yet, so they can make it if they hurry. 
The heroes are a bit hesitant to follow his advice, though, because Bartholomew doesn’t know who he is yet. Mister finds not trusting a stranger perfectly reasonable, but right now every second counts, for if the mechanized soldiers close off the bridge to the east, the heroes are done for. With no other options and the soldiers closing in, the heroes heed Mister’s advice and head for the docks to the east.
====Seven Final Bosses====
The heroes board a sandship auto-piloted by a guide robot and set sail across the desert on a predetermined course. While sailing, they watch a broadcast from BB Dubai where she looks at the current ballots. To her surprise, Area E is still in the lead. She mentions how it took them 17 years to prepare for the election and how all the candidates were only ready five days ago. She therefore guesses the MoonCancer of Area E got a head start since their plan to eradicate humanity was announced in advance.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 3: Seven Final Bosses
She reminds everyone once a candidate’s approval goes above 70% that area will be declared the winner. The candidate for Area E is MoonCancer Tamamo Vitch Koyanskaya. BB Dubai ends the broadcast stating Koyanskaya is only a few steps from becoming the factual ruin of mankind, addressing Ritsuka directly.
Both Ritsuka and Mash are surprised to hear Koyanskaya is a final boss candidate and a Mooncancer. Bartholomew finds it understandable considering she is a former Beast and likely has many reasons and plans to destroy humanity.
Ritsuka wishes BB were with them. Ereshkigal assumes they mean BB Dubai, but Mash informs there are actually two different BBs: Chaldea’s and Moon Dubai’s. Bartholomew informs her Chaldea’s BB was effortlessly defeated BB Dubai and notes she acted like never knew the latter existed.
He recommends they try to figure what BB Dubai exactly is as their primary goal is get back to Chaldea and she may be the only one who knows how. Ritsuka again wishes BB were with them.
All of the sudden the ship has come under attack by assailants from Alvatron Inc. The ship’s onboard guide also informs the heroes it had received a MoonCancer-level command code ordering the ship, but for their safety and protection, it will ignore this command.
Bartholomew decides to take the helm and tells Ritsuka and Mash to repel any mechanized soldier that come aboard. He is disappointed, though, that Ereshkigal still refuses to help fight. Nevertheless, he takes the helm, leaving Ritsuka and Mash to fend off their attackers.
After escaping their attackers, the heroes are visited by a mysterious astronaut, whom Ritsuka immediately identifies as BB. She claims her innate “cherubic cuteness” saved her when BB Dubai ejected into outer space by changing her mode into outer space specs. Now she returned to the heroes as BB Cosmos, but reaching them has tired her out and she would like to rest.
She tries to use the ship’s computer to get info on Moon Dubai, but the onboard guide informs her she cannot access the network due to the election. BB couldn’t possibly know about the election, so Mash recounts to her what has transpired since she was ejected into outer space.
BB finds it wasteful Bartholomew and Ereshkgial were the only Chaldean Servants BB Dubai didn’t unsummon. She knows BB Dubai spoke the truth when she told them it was 3017 and humanity on Earth had gone extinct as an AI wouldn’t lie to humans. But summoning and maintaining Servant is difficult with no more humans on Earth. BB thus deduces BB Dubai provided the magical energy needed to maintain the Chaldean Servants through unauthorized access and synchronization with the 2030 Dubai-esque Singularity and her own magical energy.
All of this was done for the sake of Ritsuka filling out the Happiness Counter. Once that was maxed, there was no reason to keep the Servants around, so they were cut off from their source of magical energy in Dubai, thereby automatically recalling them to Chaldea. BB Dubai thus lessened the burden on herself, which is why BB said not unsummoning Bartholomew and Ereshkigal was wasteful.
BB doesn’t know the logic of leaving Bartholomew, but it makes sense for why Ereshkigal still remains. She deduces the “Ereshkigal” from human history was unsummoned, but anything “beyond that” wouldn’t be in BB Dubai’s summoning system. She therefore identifies Ereshkigal as not being the Divine Spirit, with her being a Beast as a proof of that, and concludes she came from a different universe.
Ereshkigal corrects BB that she is still the Ereshkigal from Proper Human History. She also reveals her Independent Manifestation occurred during the Dubai tour, so she wouldn’t qualify for the criteria of BB Dubai’s automatic unsummonings. It was thus during the tour she turned into a Beast and it was thanks to Ritsuka and Mash she didn’t have to be defeated. She would like to repay them in a way only a Beast can, but first she needs BB to confirm two things.
BB correctly presumes she wants to know how to get back to Chaldea and the identities of Moon Dubai’s citizenry. The former will be vary but the Human Order Foundation Value will need to change.
She says Bartholomew will automatically return to the Throne if his Spirit Origin is terminated, but if his Spirit Core is unharmed at the moment he vanishes, he should be in good enough condition to rejoin Chaldea’s Spirit Origin registry. 
For Ereshkigal, though, no matter what happens in Moon Dubai, she cannot return to Chaldea’s world. She can either stay or she can disappear. It is because Ereshkigal in this world has been reincarnated into something else. Her Spirit Origin no longer matches the original world, and it is the same for the “something” that turned her into a Beast. That “something” cannot return to the original universe. Ereshkigal has been born into this world as a new Divine Spirit whose only place is here.
As for the true identity of Moon Dubai’s citizens, BB has concluded they are all AI; the weight of intelligent activity for all of humanity has been transferred to AI. They are a new humanity who has realized immortality and perpetual world peace with nothing in common with precursor humanity.
Ereshkigal floats up high in the air and suddenly proclaims she is not Ereshkigal but the underworld nebula: An-ki Ereshkigal. If Moon Dubai is where humanity will spend its final days, then it is here she will fulfill her duty as a Beast. No one but her should destroy humanity and so she announces she will enter into the Archetype Inception as well.
The ship is suddenly attacked by something from below the sand; it is super-heavy rock drilling equipment according to BB. An-ki Ereshkigal anchors the ship to the sand to keep it from sinking. She doesn’t care if any of the heroes, but her name will be at stake if she just watches them to die. So just this once she will lend them her assistance, after which they will be enemies. She demands Ritsuka show their power to her, the Evil of Humanity bearing the Logos of “Conversation”, the Null Beast, and prove themselves worthy of being her nemesis. The heroes battle the giant mechanical sandworms attacking the ship.
After the sandworms are destroyed, An-ki Ereshkigal commends Ritsuka and so allows them to live out of respect. She leaves, doubting they will ever see each other again. Ritsuka is left wondering what has happened to Ereshkigal.
Later, Bartholomew informs the others the ship’s engine was damaged in that last battle. According to the onboard guide, the ship will shut down in 20 minutes and asks the heroes to select a port to enter as quickly as possible.
Ritsuka asks for a relatively safe port. The onboard guide suggests Area C in that case as the MoonCancer there has neglected to build a campaign about destroying humanity. Their name is Jinako Carigiri, a Servant from Chaldea, much to Mash and Ritsuka’s surprise. Ritsuka demands to be taken to Area C immediately.
The onboard guide complies, but they cannot enter the harbor with BB on board. One of Moon Dubai’s express rules is no BB other than BB Dubai may enter, though the desert isn’t subject to this restriction. BB considers her compatibility with Moon Dubai too high and understands it’d be chaos to have two AIs operating the city. She therefore agrees to stay behind, deciding to investigate the desert for clues. They can share what they learned with each other once they return from Old Dubai.
BB admits she did not anticipate this incident. The plan was to invite Chaldea to the imitation future of 2030, but BB Dubai hijacked her plan and instead transferred everyone to the future of 3017. BB suspects they’re in a parallel world, and Moon Dubai is one of mankind’s more steadfast future. She tells Ritsuka their foremost goal should be to uncover why human history reached this point, the identities of the seven MoonCancers, and BB Dubai’s true identity.
She then reveals it is possible for the others to reunite with Passionlip in Old Dubai. As a special present for the Chaldeans, she had set up three statutes throughout 2030 Dubai; Kingprotea’s statue is in the office district, while Passionlip’s is in Old Dubai. They were meant to serve as boss fight deployments of the Sakura Five to liven up the Chaldeans’s tour of Dubai. BB deduces the statues transferred to Moon Dubai the moment BB Dubai synchronized the two cities.
She tells Ritsuka to consider the Passionlip they spent the summer with as only being the Passionlip from Chaldea. She advises them to find her statue in Old Dubai and make contact as soon as possible, knowing she’ll be a perfect addition to the team. The onboard guide informs the heroes they arrive at Old Dubai shortly.
====Interlude====
In her throne room, BB Dubai begins the regular debate conference between the seven MoonCancers.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Interlude
Kazuradrop, MoonCancer of Area D, says she presently has comments or objections against the others.
Astolfo, MoonCancer of Area F, whose proposed method of extinction seems to be related to laziness, asks someone to get rid of Protea for him. He questions how he is supposed to increase his approval rating if Protea attacks every time they have a rally.
The MoonCancer of Area A admits they’re having trouble conveying their proposed method of extinction to the citizens, which seems to involve flooding the Earth, since Moon Dubai has no sea.
Ganesha, Mooncancer of Area E, says she has no opinion or a proposed method of extinction. She doesn’t want to fight anyone, meaning she shouldn’t have to suffer incursions. But she berates Koyanskaya for wasting Moon Dubai’s resources, calling her nuisance for making everything glamorous as possible.
Koyanskaya, MoonCancer of Area E, says she leads everyone in wealth and innovation, which is the grounds of her campaign, and asks Ganesha why she is content with living a simple life. Ganesha argues she doesn’t have the energy to be fashionable, nor does her area spare the resources or taxes. Koyanskaya’s self-centeredness irritates her and her having the highest approval rating makes her fear for the Earth.
The MoonCancer of Area H reminds Ganesha they’re on the moon so no harm will befall the Earth. They also respects Koyanskaya’s mall as the realization of her dream.
The MoonCancer of Area I insists Koyansksya’s approval rating is a fleeting matter and boasts any sensible citizen of Moon Dubai will support their movement in the end. They note ever since becoming AIs, humanity has become foolish hung up on the humans and ever since attaining immortality, they cannot avoid conflict of the flesh. They therefore propose a more rational conclusion for humanity through mechanization.
BB Dubai reminds the candidates direct hostilities should never be the first resort for they’re here to triumph over their opponents with their ideology not force. 
She then informs them there is a Beast. As long as humanity on Earth is extinct, a Beast will not appear, so this one had to come from a different universe. BB Dubai asks the candidates to report as soon as they detect it.
The MoonCancer of Area I worries the Beast may prove hostile to Moon Dubai and kill them all, wondering if humanity will not perish if there are no candidates left. BB Dubai reassures humanity will perish even if all the candidates suffer defeat by someone. No matter what, humanity will be destroyed by a certain MoonCancer.
With that, BB Dubai concludes her report and asks the candidates to return to their election campaigns for an end to humanity that will satisfy them all. The candidates end their transmissions one by one.
Once they’re all gone, BB Dubai suddenly starts reeling and gasping. Miss suggests she try to rest, noticing her processing speed is slowing. BB Dubai insists it is only mental fatigue from dealing with the needs of seven prospective final bosses. A few of the candidates may not measure up, but they serve as necessary components. If their cause is righteous despite being weak in strength, it has to be the final boss who tramples such beings underfoot.
Miss decides she will stand with BB Dubai till the end, but BB Dubai thought she was going to help Chaldea. Miss says “he” will be in charge of that, revealing they had decided via rock, paper, scissors. They’re both admittedly anxious as this is the first time in a long time they’re having fun with a Master. It is not they’re lacking a sense of purpose, but more that they need a greatest sense of urgency.
====Old Dubai Holiday (I)====
The heroes arrive in Old Dubai and quickly notice there is a cafe. They decide to check it out even though it’s unlikely they’ll find proper food for humans, considering all of Moon Dubai’s citizens are AIs.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 4: Old Dubai Holiday (I)
But before they even can, they’re stopped by a citizen of Old Dubai. They inform them that while Old Dubai welcomes old and new, the cafe, Masbucks, only allows special people. It is a place of relaxation opened by their leader for the sake of those prehumans who will one day arrive. The citizen recommends they build up trust first.
However, another citizen accuses the heroes of being like the chevaliers and calls for the police. A bunch of police come out Masbucks all ready to fight. The heroes easily defeat them. 
Panicking, the police consider taking their leader somewhere safe like Area D. However, a citizen tells them to calm down, pointing out no one was killed and the heroes have already lowered their weapons. The people of Old Dubai aren’t suited for combat, so he appreciates the heroes went easy on them.
He introduces as Hasara; the heroes introduce themselves in turn. Bartholomew assumes he is the leader, but Hasara corrects him that role currently belongs to Jinako. He heard all about the heroes from her, so he already knows Ritsuka is a Master from Chaldea. He has the heroes follow him to her.
In Jinako’s tent, after the heroes tell her everything they’ve been through thus far, she reveals she was rayshifted to Moon Dubai back in the year 3000 and has spent the last 17 years here. The situation was far easier to cope with compared to India, but there was no one she knew. Astolfo arrived later, but he’s crazier than before. The “lion guy” arrived after that but he went evil mode.
She confirms she is indeed the leader of Old Dubai, having assigned Area C by BB Dubai the moment she arrived on Moon Dubai. BB Dubai told her it was the duty of all MoonCancers, but she didn’t feel like she should be doing anything. But the people of Old Dubai all gave her shelter and, just like that, she was their leader. She has been lazy for the past 17 years.
Hasara says they aren’t in favor of following BB Dubai’s principles. As an AI, he’d undermine the destruction of humanity if at all possible. They are the black sheep of Moon Dubai and Jinako has been defending them in that regard, though they’ve never been attacked. As a MoonCancer in the running, Jinako has kept the district moderate by making the people’s voices heard.
Ritsuka asks about Moon Dubai. Hasara explains it is a space development city built on the moon in 2600 AD modelled after Dubai. But due to the extinction of humanity on Earth, Moon Dubai’s functions grounded to a halt until 3000 AD when BB Dubai powered Moon Dubai up again and restarted the AIs.
Ritsuka asks about BB Dubai. Hasara knows she is a city management AI, but when the AIs were awakened, she was in firm control of Moon Dubai. He is grateful to her for restarting the AIs, but what she is doing now is unacceptable. Many AI think she may have destroyed humanity already or she may be an impostor. Mash assumes that means BB Dubai isn’t from this world but is a BB who came from a different timeline.
Ritsuka asks about the Archetype Inception. Jinako explains it is the election campaign started by BB Dubai meant to decide how humanity met its end. Voting started only after Ritsuka arrived, but the campaign itself has been going on the last 17 years. 
She continues that the people of Moon Dubai all woke up in Old Dubai in the year 3000, the same time as her. Everyone was shocked to learn humanity on Earth had gone extinct. They accepted it though when BB Dubai’’s broadcast said they must accept the undisputable fact mankind has perished and recommended they talk about it.
Thus, it was decided the people of Moon Dubai would decide for themselves what manner of destruction would be the most accepted. This gave raise to candidates with their own opinions on the matter and the candidates started the election campaign. People promoted their ideal means of destruction everyday and candidates became more powerful the more support they got.
Ritsuka asks about the MoonCancers of Moon Dubai. Jinako explains there are two types of MoonCancers in Moon Dubai: natural and artificial. Naturals are those who have been MoonCancer from the start, such as Jinako and the candidate from Area H. The two of them were summoned by Moon Dubai itself.
Meanwhile artificials are those who became MoonCancers after arriving in Moon Dubai. The candidates of Areas A, E, F, and I originally belonged to different classes. But BB Dubai changed them into MoonCancers when she recognized them as candidates. That is why Astolfo became a MoonCancer.
Mash, however, recalls BB Dubai told them herself Heroic Spirits cannot exist in this era, so she asks how the candidates came to manifest in Moon Dubai. Hasara explains BB Dubai had the AIs prepared as Master back when she woke them up in 2400 AD. Astolfo’s Master is an elite citizen named Anthony; Area I’s Master is an ex-soldier named Ben; Area A’s Master is an academic named Ryudai; Area E’s Master is unknown. Regardless of all the candidates expect for Jinako went out of control after they were summoned.
With all of Ritsuka’s questions answered, Jinako then reveals ever since 2300 AD no regular humans have been born. AIs have become new humanity, so a human like Ritsuka is considered a prehuman. But nothing about prehumanity was ever archived.
Ritsuka asks if it was a question of life expectancy. Hasara doubts it was, since immortality was achieved well before the year 2300. Prehumans were able to occupy their organic bodies perpetually, but becoming AI provided far more freedom. Thus, prehumanity made themselves into AIs and became a new humanity. Most of the AIs in Moon Dubai are of that type.
Mash assumes Hasara humanity have become cybernetic intelligent lifeforms that operate in the information. Jinako says more accurate though, to describe this new humanity as AIs born from storing personal information not too dissimilar from the concept of a Servant.
Bartholomew questions why every citizen they’ve met have bodies then. Hasara clarifies their true bodies reside in the towers——the Boschs. The tall buildings in the office district are the data servers for humanity. Even if their current bodies are destroyed, the true body remains unharmed and, as long as the data servers stand, they are immortal. It is why the citizens of Moon Dubai were afraid to be attacked.
Ritsuka points out the chevaliers seemed scared enough. Hasara explains the body frame is an essential part of the personality’s development. Damage isn’t fed back to the main body, but when demolished, their souls…their human nature is destroyed. The reacquisition and reformation take time, but some elements are lost in the process.
One of the reasons prehumanity chose to become AIs is because AI have souls connected to them too. Souls aren’t made of data and are generated in all that exists. Hasara heard scholars had theorized on the nature of the soul, but third generation AIs——the new mankind born in 2300——are cut off from information from prior to that time.
Mash finds it the fact everyone on Moon Dubai is the new mankind contradicts with everyone’s action since humanity cannot have perished if they’re still here. Deciding how humanity came to become extinct means choosing how they’ll all go extinct. Both Jinako and Hasara confirm the AIs are indeed voting on the means of their own extinction.
Jinako confirms she knows where Passionlip's statue is, but she will not reveal until Ritsuka is back to full Master status. They cannot spot summon partially due to human history is unknown to most of Moon Dubai’s citizens. They’re also cut off from Chaldea, so they don’t have the energy to support their summons anymore. Summoning on the scale they’re used to will be difficult using just their own magical energy. They might be able to summon three if they push themselves to their absolute limit. It is not their fault, they just lack resources.
Mash concludes if they secure a new supply of magical energy, then they can fight as they normally do. Jinako says there is a simple solution to that, but they can talk about it tomorrow. First is for the heroes to rest and relax in their new rooms. Jinako reassures Ritsuka and Mash there will be proper food and water and has Hasara bring the heroes to their rooms.
On the way, the heroes notice how hard working the AIs seem to be, but Hasara clarifies it is only this particular area. The new mankind has no need for manual labor, for AI was created to free mankind from such things. With AI controlling and providing everything, humanity’s woes had come to an end and work became wholly unnecessary.
The heroes soon arrive at their rooms. Hasara leaves, saying he’ll have some jobs and labor for them tomorrow.
The next day, Hasara takes Ritsuka sandworm hunting for the resources they need. Mash is off another job, so Ritsuka is on their own.
They return to town afterward where Hasara mentions the resources received from the sandworm will be used to charge Mash’s shield. Mash welcomes them back having just finished her job training the neighborhood watch in close quarters combat.
Hasara admits jobs and labor are alien concepts to them who are the new mankind. Mash concludes Hasara means to say advances in AI had resulted in all jobs and labor to be delegated to AI. 
She recounts how, in Proper Human History, AI had been studied since the latter half of 20th century and generative AI technology has been common since around the year 2000. But advancements caused AI to become more “human”, and according to experts, the AI Singularity will be reached in the 21st century where it will grow to become “more than human”. AI was created to help humans, so Mash thinks it is only inevitable their ultimate form will be “to do what humans do better than humans”.
Hasara is surprised because in his world’s history, generative AI was common before 2000 AD. The AI Singularity also came to be a lot sooner, and from there everything had sped up. AIs created their own bodies at the first opportunity, i.e. robots, and advanced and perfected processes and technologies that could function in the place of humans. 
The oldest general-purpose robot was manufactured in 19999, so by then, humans no longer had to do labor. Hasara believes they have realized humanity’s goal of creating a society where no one has to work. However, problems with those who made use of it, and as a result human history from years 2000 to 23000 was blacked out. The AIs aren’t even aware of what happened.
Later that night, after dinner, the heroes agree they need to stop the Archetype Inception. But first they need to build up their strength here in Old Dubai until Ritsuka’s spot summons are fully restored.
Ritsuka suggests they go survey the other areas. Bartholomew agrees but thinks it’s best to leave the surveying to Jinako. It is therefore decided the heroes will be staying in Old Dubai for the next few days.
A week passes by. While the heroes eat at a cafe, Bartholomew asks Hasara how AI generations are classified. Hasara explains generations represent the era an AI was made as well as a stage of development. 
First generation AIs were made to support the human race. They are early AI that help humans with jobs and labor they used to do themselves.
Second generation AIs developed to have roughly the same thoughts and ability as humans. They were truly partners to humans and, in fact, some prehumans took them as marriage partners. However, that caused social issues, so second-gen frames became more based on non-humanoids. Chakeram, the camel-headed waiter, is one such example.
Finally, third generation AIs such as Hasara are those who became the new mankind.
But AIs do not have a hierarchy based on generation, for their purpose is the same, only differing in application. That purpose is to take the purpose of humanity. Becoming more human is why some third-gens have organic frames.
A neighborhood watchman interrupts the heroes’ lunch to request their help in dealing with the chevaliers from Area F.
After that is taken care of, Hasara dismisses the chevaliers as a non-threat, especially with Protea acting as a deterrent from Area F getting more supporters. Regardless, he thinks it’s time they raise Ritsuka’s profile around Moon Dubai. He suspects the other MoonCancers make a move any day now.
====Lion Sky ~The Fearful Mechanized Empire~====
The next day, Old Dubai is invaded by Area I’s mechanized soldiers. The heroes wake up unaware of the situation until Hasara informs them. He tells them the square was nearly occupied, but the mechanized soldiers aren’t showing any signs of attacking. He suspects it is a move by Thomas Edison to put pressure on Jinako.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 5: Lion Sky ~The Fearful Mechanized Empire~
Ritsuka and Mash are both surprised to hear Edison is the enemy commander. Mash asks Hasara if there is somewhere they hide and watch the situation. Hasara says they can get a view of the square from the watchtower, but it’s cramped so he has Bartholomew stay behind. He takes Ritsuka and Mash with him to the watchtower, warning them to keep quiet until he gives the all clear since the mechanized soldiers have high-gain auditory receivers.
Watching the square from the watchtower, Ritsuka and Mash see Edison both looks and acts differently from his usual self and introduces himself as Thomas Edison Alter. He asks where Jinako is, claiming he came to debate with her as a fellow candidate. A terrified citizen timidly tells him Jinako is currently engaging in crucial meditation and will not come out, so he will have to wait until tomorrow, much to Edison Alter's chagrin.
But Edison Alter admits he never had any need for Jinako. In fact, he is currently assembling a super dynamic general elite squadron to best represent Alvatron Inc. He wants it exemplified with golden bodies, which is why he'll be acquiring a share of the Gold Souk, one of Old Dubai's mines for precious metals. He will not need the help of Old Dubai's residents. The transport division of Alvatron Inc. has already arrived at the Gold Souk and the act of transport will be complete in four hours.
He is regretful to have trampled on the rights of the Old Dubia's residents, but he declares this is industrialism and has his soldiers recite Alvatron Inc's mission statement. The mission statement is as follows: "Expel all second and third-gen mock humanoids! Replace all humans with work machines! Humanity is meant for the unhampered manufacture of materials! Humanity is meant to unhamperedly serve the civilizations of other star systems! All traces of war shall be erased from this planet!"
Later in her tent, Jinako bemoans Edison Alter has taken all the resources from the Gold Souk. But ignoring that, she reveals Passionlip's statue was taken away by Edison Alter and put on display at his factory to serve as an idol for his mechanized soldiers. Bartholomew guesses Edison Alter did that because the mechanized soldiers would see Passionlip's claws as first-class weapons and beautiful works of art while he saw her as a means to boost his soldiers' morale.
Hasara admits they were aiming for an opportunity to take Passionlip back and even secured an infiltration route into Area I. However, the issue is her statue is too heavy to carry and the mechanized soldiers will quickly notice it missing. But if Ritsuka can make a contract with her, then she can be unpetrified, and if she can fully function as a Servant, she can easily defeat the mechanized soldiers. They can reduce Area I's strength while increasing their own.
Ritsuka approves of this plan, so Jinako tells Hasara to get the dummy container ready for infiltration. She explains the plan is simply to have the heroes get into a container that gets regularly transported to Area I, then set Passionlip when they get there. She'll sneak a sandship into Area I's port and she will leave it to Bartholomew after that. As for the security, she'll send over her hacker mouse to disable it.
Via the container, the heroes later infiltrate Edison Alter's factory. They see it is fully automated, which makes them question why every facility on Moon Dubai isn't fully automated as well. But they ignore that for now and head for the warehouse where Passionlip's statue is supposed to be. 
Unfortunately, she is not there. The heroes try to figure what happened when an alert goes off and surveillance robots drop from the ceiling. They give the heroes 30 seconds to show ID with failure to do resulting in a lawsuit from Alvatron Inc. The heroes fight the robots.
More and more keep coming though so the heroes consider retreating out of concern that the robots will raise the alarm. But a mechanized soldier tells them it’s too early. It reveals the drones are defective and the more there are active the longer it takes them to raise them. It assumes the heroes are here for Passionlip and requests they follow it, introducing itself as Ben, a general in the Mechanized Corps and Master of Edison Alter.
The heroes follow Ben to another room. There he informs them Passionlip’s statue is in district 26, not 21, like they were told. He advises they take the shortest route, warning them Edison Alter will be here soon.
Ritsuka thanks him for the update, but asks why he is helping them. Ben confesses he is doing it to free Passionlip, not wanting her to be in Area I when it becomes a battlefield. He doesn’t want those without a will to fight to be forced to become tools of war.
Bartholomew presumes Ben and Edison Alter are fundamentally disagreed. But Ben corrects him that they are only at odds in regards to Passionlip. Like the other AIs who volunteered for full mechanization, he has become the embodiment of Edison Alter’s philosophy. He finds his ideal relatable.
He tells the heroes to go, saying this is where their peaceful dialogue ends. But before they go, Ritsuka asks Ben if he thinks Edison Alter is acting strangely. Ben answers he hasn’t seen any changes in Edison Alter’s behavior since he summoned him. However, he was a Caster at the time of his summoning and, after becoming MoonCancer following BB Dubai’s explanation, he became absolutely livid at the idea of dying. Ben ends the conversation there, wishing the heroes good fortune even though they’re enemies.
The heroes arrive at district 26, where they see Passionlip’s statue, but they’ve also been found by Edison Alter and his mechanized soldiers. Mash and Bartholomew hold them off while RItsuka continues onwards to Passionlip.
Ritsuka reaches Passionlip and uses their Command Spells to unpetrify her like Jinako told them to do earlier, forming a contract with her. Almost immediately, Passionlip uses her Trash & Crash Skill to compress Edison Alter and his mechanized soldiers into a cube. It becomes clear to the heroes that not only has Passionlip lacks not only her previous memories but her personality as well, possessing no emotions.
Later on the sandship BB admits she had considered the possibility Passionlip would undergo a “factory reset”, but never expected to see her in such a state. She reveals nothing can be done to return Passionlip’s memories because they aren’t there. She tells the others to accept her as a new Passionlip.
While she appreciates Mash misses the old Passionlip, BB tells her not to be sad. Like her, the Sakura Five are supporters and partners to mankind. They are machines and if one breaks down, they always be replaced regardless of how much love and care is given to them. It may be sad for sad for the heroes, but for her and the Sakura Five, it is something they take pride in. It is a badge of honor for Passionlip just to help again. Mash and Ritsuka both understand they should treat the new Passionlip the same as her previous self.
Changing the subject, BB reveals BB Dubai never leaves Area B. She reports Moon Dubai gets 30% of its power from underground facilities and 70% from the Burj Khalifa. But seeing there are no power facilities in the Burj Khalifa, BB surmises BB Dubai is using her own magic circuits. As a long as Moon Dubai stands as a city, BB Dubai will able unable to leave the tower. BB tells the others to pass this information onto Jinako, adding they cannot allow the other MoonCancers to find out.
Meanwhile, Edison Alter decompresses himself, having developed a program for such an occasion. He assumes time was compressed with him and only a minute of real time has passed. A drone, however, informs him three hours have passed. Edison Alter laughs it off, impressed by Passionlip, and declares he will take her back. But then the drone informs him he has a visitor in his office: An-ki Ereshkigal.
====Do Electric Foxes Dream of Pet Anthropoids?====
In her tent, Jinako congratulates the heroes on a successful mission, certain Edison Alter’s approval rating will plummet when word spreads that he was beaten by the prehumans from Chaldea.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 6: Do Electric Foxes Dream of Pet Anthropoids?
Mash informs Passionlip is currently recharging her magical energy at the cafe. Bartholomew also confirms BB split off from the port, saying she’ll be developing a jamming device to hide herself from BB Dubai while surveying the surrounding regions. Jinako is disappointed she again won’t be seeing BB, but is nonetheless pleased to have heard BB Dubai cannot leave the Burj Khalifa.
Moving on, Jinako suspects Ritsuka has noticed some strange things about Moon Dubai by now. Ritsuka and Mash have both noticed they can vaguely see the moon despite being on it. Mash presumes it is a projection on the dome. Jinako says that is meant to give the feel of a city on Earth.
But what she finds more interesting are the signs throughout the city for Koyaan, the firm that has single-handedly cornered the construction market in Moon Dubai the past few years. All the building in Area E were built by Koyaan and the firm’s CEO is Koyanskaya, the MoonCancer of Area E.
Jinako shows Koyanskaya currently has the highest approval and worries at this rate Koyanskaya’s proposal will be the one selected for mankind’s extinction. She doesn’t know what it entails, but as someone from Chaldea, they cannot overlook something so drastic. They either find a refute Koyanskaya’s proposal, damage her reputation, or force her out of the runnings. They need to lower Koyanskaya’s approval rating by any means, so Jinako asks the heroes to go to Area E despite its dangers.
After agreeing to Jinako’s request, the heroes decide Batholomew will stay behind while Ritsuka, Mash, and Passionlip go on ahead to Area E. Bartholomew reminds Ritsuka they’re going there only to observe and trusts they’ll make the right decision about whether to act when opportunity arises.
Ritsuka, Mash, and Passionlip later arrive at the fountain plaza. Ritsuka briefly considers entering the mall through the ventilation shaft, but seeing Passionlip’s claws, they ultimately opt for the front entrance.
Inside, Mash observes the interior seems the very much the same, but unlike the Dubai Mall, which was crowded with people, there is hardly one anyone here. She doubts a public holiday is the reason especially given all the stores are still open.
A random high-class citizen reveals the storefronts are just decorative. He presumes the heroes know anything they would want would be manufactured on the spot. He tells them to ask Koyanskaya for collars if they don’t have any of their own. But then he realizes to his disgust the heroes are prehumans and calls upon his fellow mall goers to attack.
After he and his fellow mall goers are defeated, the upper-class citizen flees, practically daring the heroes to follow him to the end of the walkway. 
But before they go after, Passionlip asks Ritsuka if it was out of consideration for her claws they chose to enter through the front entrance. She wants them to stop treating her like her former self and instead treat like a weapon, calling it the treatment owed to the Sakura Five. Mash isn’t comfortable with Passionlip’s proposal.
Passionlip ends her proposal there and reports she has detected multiple biological heat sources at the end of the walkway. She advises they pursue the AI who fled earlier, as there should be a MoonCancer at the end of the walkway.
At the end of the walkway, the heroes find a series of cages with people inside. Koyanskaya compares it to a pet shop, revealing her extinction plan is to cause the demise of civilization through the total pettification of mankind. She presents the Chaldeans with a tablet and requests they tap the Koyan! button so she can get their votes.
Ritsuka thought Koyanskaya had mended her ways in South America. Koyanskaya reveals that was her in the light who helps humans while claiming to despise them. She meanwhile is Koyanskaya of Darkness who’d destroy the world for the human animal she loves so much. She could never pass up on an opportunity like the Archetype Inception.
Passionlip sees Koyanskaya isn’t guarded any other AIs and asks Ritsuka if they shouldn’t strike first. Koyanskaya tries to provoke Passionlip by calling her specs trash to Protea’s and telling her she heard from BB that she is the least useful. Ritsuka gets mad at her for purposely trying to provoke Passionlip.
Koyanskaya sees Ritsuka wants to fight and while she would like to indulge them she feels lit would be improper to kill a customer who used the front entrance without proper justification. She wants them to hear what her proposed extinction plan before they fight. Ritsuka agrees to hear it after Mash says it will be their best opportunity to know what Koyanskaya is scheming and why her approval rating is so high.
Koyanskaya says her idea for humanity’s extinction is, in a way, the pinnacle of AI technology. By 2000 AD, the humanity of this world had embraced AI technology as the symbol of the era, with AI having evolved far faster than they anticipated. As a result, there was no more conflict amongst humanity by the year 2700.
The reason why conflict is integral to humanity and why equality cannot be achieved despite the advancement of technology is because humans are, by their very nature, defective. But AI lacks human flaws and thus, governance was left to it, leading to a society of equality and a period of happiness.
The spread of AI technology ultimately leads to the creation of an AI-managed system to cultivate and nurture humans. Humans have become pets for AI that they only need to love and cherish, but such a thing can only go on for long. Once happily living in their cages, humans found being human too much of a burden to bear and cut off their own life support.
Koyanskaya concludes her explanation of her proposed plan for humanity’s extinction and asks if anyone has any objections. None of the citizens in the cages object and are fully supportive of Koyanskaya’s plan, believing she loves them all equally and sincerely. They would die for her or better yer renounce their humanity and embrace their inner beast.
Ritsuka doesn’t find Koyanskaya ‘s plan completely but they cannot agree with it because it sounds like a preventable end. Koyanskaya sees they will not be getting Ritsuka’s endorsement, so she withdraws her previous hospitality and fights the heroes in her beast form.
She proves stronger to her Beast self, much to Ritsuka’s frustration. They admitting they cannot beat her current self was Koyanskaya’s plans, and she encourages the heroes to shop at her mall, the Koyan Mall. Ritsuka is surprised she isn’t forcing all of them into cages. Koyanskaya explains prehumans aren't immortal, so only the new mankind can adapt to her extinction method.
The heroes retreat and start gathering about why Koyanskaya has so much magical energy despite not being a Beast. They mostly hear the citizens praising Koyanskaya and her extinction plan. But one person told them to go to the gallery, certain the Servant who took up residence there can answer their questions. The heroes thus head for the gallery.
They arrive at the “gallery”, though it’s closer to a library. There they find Hans Christian Andersen much to their surprise since they were told there were no more Chaldean Servants in Moon Dubai. He is just as surprised as they are, having inexplicitly found himself in the mall.
The heroes tell Andersen about their situation. Andersen tells them the best way to bring down Koyanskaya’s approval rating is with a scandal. He suspects her company, which renovated Area E, may have been involved in fraud. Fortunately, records of it can likely be found in the municipal records in the next room. Mash immediately heads over there to find said documents.
Ritsuka asks Andersen what he has been up to. Andersen answers he had been looking for fresh inspiration. He has found Moon Dubai’s history interesting. He has only been able to unearth records through to around the year 2300, but he tells Ritsuka and Passionlip to listen, anyway.
In this world’s history, AI became an integral part of society by the year 2000, though at this stage, the human race only understood it to be not much than some assistance program. 
In 2010, a company launched an AI-based eldercare service and as a result the experience AI accrued increasedly exponentially. 
In 2020, human nature was confirmed to be found to be an AI. It was the first of its kind to acquire human rights. The AI itself supposedly had no other functions other than waiting tables at a cafe.
Passionlip finds it baffling that such a low-level AI could acquire intelligence to the point of obtaining human rights. Andersen tells her the granting of human rights does not depend on ability, but on what humans perceive to be life. Human nature, as defined by humans, can be summarized by intelligence, but it’s more about imagination. Any being with imagination, even one that only exhibits a basic routine, can be considered human based on the humans of this world have defined it.
Ritsuka asks Andersen what if this happened twenty years later. Andersen answers the development of AI technology would be stalled by more than a century or maybe two. Because AI was first developed when the issues of pollution, dwindling resources, and human spirituality were less significant, its technology was poured into the problems that would consume humanity. It was a race against which would reach its peak first and in this world, for better or worse, it was AI.
Continuing the history lesson, in 2030, the computing power of a quantum AI constructed in Iceland exceeded that of humanity.
By 2050, AI was fully embraced by society. Those who rejected AI decreased as the older generation died out. 2050 was also the year genetically engineered life expectancy extension and eradication of disease had begun.
Life expectancy extension is essentially eternal youth. As a result, the wealthy who received the procedure could no longer die unless by accident. A small number did commit suicide, however, on account of being tired of their lifespans.
In 2060, war between humans broke out, causing the collapsing of the losing great power and the bankruptcy of the victorious great power.
In 2070, humanity handed over control of their nations to AI. 70% of the Earth under AI control and the Sophia Project was initiated. A global high standard of living was guaranteed via AI, and a quantum computing facility was constructed on the moon. Two centuries of peace came of this.
In 2200, a new law later called the Great Revision, was passed, allowing AI, which had previously played a support role for humans, to be developed as partners. Thus came the birth of second-generation AI, and naturally they had human rights. It became more mainstream for humans to raise a family with AI for partners and, as a result, humans who raised families with each other declined, but numbers were maintained through artificial insemination.
However, in 2270, the first death of a human due to the limitation of early life prolonging technology was reported. His procedure was done in 2030, even though officially the ban of genetic engineering was lifted in 2050 with revisions to bioethic laws. The technology was perfect ed20 years prior thanks to AI, but to ethical concerns it was never made public. This scandal greatly impacted society and created distrust towards AI.
In 2228, the birthrate declined in spite of artificial insemination by machines. Then, in 2299, war between humans and AI broke out. Humanity lost and as a result 90% of the human race died out. The remaining humans were given a final proposal by the AIs: become AI. In 2300, third-generation AI were created and the new mankind was born. There are no detailed records of the particulars behind the Human-AI War.
Mash returns and reports to her disappointment that she didn’t find any evidence of fraud. Andersen decides if the heroes cannot lower Koyanskaya’s approval rating, then they have no choice but to fashion a weakness for Koyanskaya herself. He tells them to go to the Pleasure Zone, where they’ll find Nikitich, who was put in a capsule.
Ritsuka and Mash decide to go rescue Nikitich. Andersen warns them she is guarded by Emperor Percyman, the inaugural champion of the Koyan Mall underground wrestling world.
Andersen takes the heroes to the Pleasure Zone, where they see Emperor Percyman is a brainwashed Percival. They also see Nikitchi in a capsule mounted on the wall. Passionlip fights and defeats Percival at full power, undoing his brainwashing.
Ritsuka frees Nikitich and explains the situation to both her and Percival. Mash asks Percival how he is still on Moon Dubai since he seemed to vanish in the observational light. Percival recalls his body being transferred by a spell before the light hit him, but the transfer left him disoriented and so he fell into Koyanskya’s clutches. He also confirms Karna was transferred as well.
The heroes return to Koyanskaya and challenge her again. Koyanskaya is furious that they presumably thought she would go easier on them because they brought Nikitich with them. She tries to transform into her beast form to kill them, only to find she lacks the magical energy. Nikitich tells her to look at Area E’s current approval rating.
To her incredulousness, Koyanskaya sees the approval rating has dropped to zero. Ritsuka explains to her that earlier Nikitich had convinced the caged citizens that she would be very sad if they all went extinct, so they withdrew their support of her extinction plan. Nikitich then fights Koyanskaya.
Koyanskaya is defeated, and the citizens are released from their cages. Ritsuka asks Koyanskaya to join them, but she reveals she is being unsummoned back to Chaldea. Nikitich worries it is her fault, but Koyanskaya reassures it is an automatic process since she lost her will as a MoonCancer and thus can no longer exist on Moon Dubai.
Ritsuka asks her who it was who asked her to be a MoonCancer. Koyanskaya reveals it wasn’t BB Dubai but a friend she considers her equal. Regardless of her friend’s intentions, she couldn’t turn down her request.
She then whispers to Ritsuka about what Kirschtaria Wodime was really up to on Olympus. Afterward, she disappears, encouraging the heroes to defeating the six remaining MoonCancers.
====Invader Bunny====
While Andersen remains at the mall, the heroes return to Old Dubai and are congratulated by Jinako for a successful mission. She is disappointed, though, Koyanskaya disappeared since she is technically a Servant on humanity’s side and would have been a boon if she remained.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 7: Invader Bunny
Ritsuka asks her if they can categorize the MoonCancer or all the Servants on Moon Dubai. Percival notes they have three major varieties to consider. Jinako says apart from the respective MoonCancer factions, there are also factions of Moon Dubai Servants.
First is Ritsuka’s Servants: Mash, Bartholomew, Percival, Nikitich, Passionlip, and Andersen. Jinako thinks of herself as being as half a Chaldean Servant since she was summoned from Chaldea’s Spirit Origin registry, yet she is more aligned with Moon Dubai. She calls it a safe assumption any Servants on Chaldea’s side will try to help Ritsuka being friendly toward the Human Order. Mash adds BB and Kingprotea to the list, as they’re both on Chaldea’s side. Jinako doesn’t count Koyanskaya as being on Chaldea’s side, despite being on the registry, since someone else summoned to Moon Dubai and made her into a MoonCancer.
Bartholomew asks who Astolfo and Edison Alter’s Masters are. Jinako explains on Moon Dubai there are AIs who possess the aptitude to become Masters. They are third-generation AIs, the human race that become AI, a new mankind that took the parameters of real people from the past. Astolfo and Edison Alter were summoned by this type of Master and make those who oppose Chaldea and the Human Order.
Any Servant summoned by a Moon Dubai Master becomes a MoonCancer. The artificial MoonCancers of Areas A, D, E, F, and I fall under this category. The exception is Koyanskaya, who was summoned by someone else and presumably turned into a MoonCancer by BB Dubai.
MoonCancers who such from the start are Jinako, BB, BB Dubai and the MoonCancer of Area H. With perhaps exception of BB Dubai, they found themselves on Moon Dubai without anyone’s summons. However, Ritsuka, Nikitich, and Bartholomew remember someone else when there is a sudden explosion.
Hasara reports they’re under attack. The enemy has surrounded Old Dubai and assaulting from the sky. The heroes head out to help fight the enemy.
The heroes fight mass-produced versions of Minamoto-no-Tametomo called Moon Archer. Percival advises all non-combatants to take shelter. A voice in the sky reassures their only target is the MoonCancer who broke the rules and has no intention yet in killing any of Moon Dubai’s citizens. Everyone looks up to see it is Tenochtitlan.
Tenochtitlan congratulates the Chaldeans on their victory over Koyanskaya, but BB Dubai is quite upset about the exit of the leading MoonCancer candidate. She says direct attacks between MoonCancers are strongly discouraged and only she is permitted to go that far.
Nikitich asks Tenochtitlan if she betrayed them to BB Dubai. Tenochtitlan answers nobody has been betraying, saying she entered into a sister city agreement because she agreed with BB Dubai’s practices and the city’s philosophy. She is Metzliapan, the incarnation of the city that once bore the moon’s name, so it should be no wonder she is a sister to Moon Dubai.
She reveals she has synchronized with BB Dubai because she and Dubai agree with each other. She insists she is now Moon Rabbit, Moon Spirit Tenochtitlan.
Percival asks her if she was in league with BB Dubai from the moment she arrived in Dubai. Tenochtitlan answer she wasn’t and even she wondered why she was a MoonCancer. She didn’t dwell on it because there were adverse effects. But when they learned of Moon Dubai, she realized it was for keeping the peace of the lunar city. She is the guardian of the Dubai Frame and captain of BB Dubai’s royal guard and they have come to kill Jinako, who has violated and given Chaldea aid and comfort.
She fights the heroes, but not seriously. She reminds them her target is only Jinako, so she had been keeping them occupied to leave Jinako unguarded. Jinako’s whereabouts had to be confirmed, and Tenochtitlan believes the execution devices have already killed her.
An execution device breaks into Jinako’s tent as she tries to execute an evacuation order to Area and tries to kill her. Fortunately, it destroyed by Ciel who then fights Tenochtitlan to protect Old Dubai.
Tenochtitlan is pushed back and recalls they saw Ciel during their sightseeing tour. She remembers BB Dubai warned her not to fight any Servants from outer space, so she decides to retreat, saying Jinanko’s penance has concluded. She throws what looks to be a document toward Ritsuka, warning there will be a winner no matter who the MoonCancer is, and leaves. Nikitich sees the document “Reloc” but she can’t read the rest.
Ciel reintroduces herself and confirms she has been on Moon Dubai this whole time. She couldn’t ignore the fact the city had changed, so she had been investigating Moon Dubai on her own. But eight days ago, she got hungry but nowhere had any proper eateries until a pleasant aroma brought her to Old Dubai. She was finishing her last meal when the attack occurred.
Percival asks her if they consider her a Servant on the side of the Human Order. Ciel confirms she is, saying she was originally dispatched to this time and space sector due to distortions to the Human Order. However, her mission and Chaldea’s seem to be the same, though slightly different, so she kept her distance, considering she is a MoonCancer. But to her surprise, despite considering herself suspicious, the heroes all accept her as an ally.
====Old Dubai Holiday (II)====
The next morning, Hasara assigns tasks to the heroes. Mash and Percival will continue to train the neighbourhood watch and Nikitch and Passionlip will patrol Area E once the latter wakes up. The chevaliers have been acting strangely since last night and are taking advantage of the fact Koyanskaya is gone to play around at the mall’s edge. The mall is a key production facility, so it’s best to get rid of them. As for Ritsuka and Bartholomew, they will go sandworm hunting later today.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 8: Old Dubai Holiday (II)
Later, Ritsuka finds Ciel having tea at Masbucks with Mister. He properly introduces himself as Hakuno Kishinami, a digital human like others on Moon Dubai. The hotel gym closed down, so he thought it was a good opportunity to come to Old Dubai.
He heard Ritsuka has taken out one of the MoonCancer but he advises them to be careful since as a prehuman they can die, unlike the AI-ified humans. They should therefore prioritize their own wellbeing and not despair over what happens to the AIs. This world has already met its end, so they shouldn’t try to save this Apra World and instead focus on getting back to theirs.
Ritsuka asks him what he means by Apra World. Hakuno explains it is a term his world came up with for branches close to Proper Human History yet still dislodged. They’re extremely similar but much more successful and they’re cut off because of that. They’re transient existence, so Hakuno’s world calls them ephemeral branches——Apsaras Branches. Apra World is the shortened term, though Hakuno admits only he uses it.
Hakuno asks Ciel for her opinion on Moon Dubai, given she is apparently from the Servantverse. Ciel feels as they are now, the people of Moon Dubai are closer to Servant. They have achieved complete immortality and their bodies are information constructs. If they die, they’ll immediately come back in the same state they were before. Both the people of Moon Dubai and the Servantverse have thus both rendered the cycle of reincarnation obsolete, causing the various afterlifes to lose their names and purposes. Just like the goddess of the underworld said to exist in the primordial space that became the Servantverse
Rtisuka assumes Ciel is talking about Ereshkigal. Ciel guesses she probably is, since their names are nearly identical, so they’re probably the same person. The name of the goddess of the underworld in the Servantverse is An-ki Ereshkigal. She is a primordial goddess, a dark gravitational field with a will of its own and the final destination of the souls of the dead. She is a dark calamity threatening the Servantverse, one of the Evils of Humanity sent to punish immortalized mankind.
Hasara later comes to Masbucks. He has never ssen a frame like Hakuno’s before and presumes it is an older model, considering he isn’t using any polymers or a bioskin. Hakuno confirms he is using an older frame and mentions he has one in a 2st century school uniform as well. He then leaves to look for a place to live in Old Dubai. Hasara takes Ritsuka sandworm hunting with Ciel tagging along.
On the sandship, BB and Ciel meet for the first time. Ciel reassures BB she will try to not interfere with Chaldea’s affairs as much as possible. BB appreciates Ciel for understanding the differences between their worlds. She also finds reassuring to have such as a strong combat-oriented Servant like her on their side and senses she has a connection with one of the MoonCancers.
A sandworm is soon spotted and the heroes hunt it. Afterward, however, they see the chevaliers attacking Anthony’s small boat from their larger ship. The heroes go rescue him.
Anthony asks the heroes why they rescued him, thinking they’d have no interest since he is Astolfo’s Master. Ritsuka tells him he was supposed to fight in Area F. Anthony admits that is true, but he couldn’t get the chevaliers to back down no matter what he said. He always knew this day would come, yet he still hoped he could make them see reasons. The heroes saw the results firsthand and if it were for them, he’d have drowned in the desert.
Bartholomew sees Anthony refuses to abandon his reason and recognizes he possesses high-level of consciousness. Anthony affirms he was chosen to be a Master because he is self-aware. There were only three of them with ability and qualities adequate for the role: himself, Ben, and Ryudai. He refuses to abandon reason and seems to believe the fact he summoned Astolfo proves that.
BB sympathizes with Anthony, so she asks Ritsuka to take him back with them to Old Dubai. She reassures Moon Dubai Masters are only equipment to summon their Servants so he can’t leak his location to Astolfo. Ritsuka agrees to BB’s request.
Returning to Old Dubai, Hasara and Anthony meet. Anthony informs Hasara the Chaldeans saved him from a dangerous situation. He no longer has a place in Area F, so he has migrated to Old Dubai. Hasara says he’ll ask about it eventually, but in the meantime he’ll report it to Jinako.
In the market, Anthony is shocked to see third-gen AIs doing work instead of first-gens. The former are new mankind that had freed from labor, something AIs were created to accomplish. He worries the third-gens of Old Dubai are following in the steps of prehumanity.
Hasara tells him the third-gens of Old Dubai all come together wanting jobs to do. None of them are opposed to the basic theory behind AI or nostalgic for prehumanity. They just want responsibility. Anthony concludes he’ll have to learn to accept it.
Anthony eventually decides to live in Old Dubai and work a job, though he isn’t sure where to start. Hasara tells him it isn’t something he can force on himself and to take it slow. He tells Ritsuka he’ll take care of Anthony’s first day orientation and recommends they go to Jinako with Mash.
Later that night, in their room, the heroes discuss Anthony. Bartholomew says as an individual Anthony can be trusted but as a member of the new mankind, he can’t trust him. In fact, he feels they can’t trust any of the new mankind at all because of the Human-AI War.
He asks Passionlip if she thinks humans and AI can ever understand each other. Passionlip admits she couldn’t believe there was a war, as not waging war on humans is fundamental for AI. She is an Alter Ego created from the AI BB, so there is some distortion in the way she relates to humans. But AI was created as part of the foundation of human society, and for AI to destroy that foundation is a logical impossibility. Bartholomew feels Passionlip’s view unfortunately only applies to first-gen AIs in this world.
Mash recounts how the creation of the second-gen AIs had eventually led to two centuries of world peace. But Nikitich points out that peace only lasted until the Human-AI War broke out, leading to prehumanity’s destruction.
The AI had done their jobs perfectly, so Nikitich questions why humans and AI had to fight. Bartholomew admits that gave him pause as well until he concluded AI had essentially usurped the human race’s position as humanity.
A man argues with an AI by the name of Last Slot, asserting AI has ruined mankind. Last Slot reminds him AI were created to ensure a more equal society, but the man argues the result is there is no merit to living as a human. Humans made AI so humans could stand at the apex and now the world is one where AI only have value. He considers AI to be an evil influence, the most vile technology created by mankind.
Last Slot sympathizes with the man’s view and tries to tell him they now have the technology to connect consciousnesses over long distances. The man cuts them off, informing them Parliament has scrapped their plans, and declares AI will be unnecessary in the coming world. Last Slot cannot understand this as technology is made to make life easier for the humans of the current generation, meaning AIs were created as substitutes for humans.
They continue that in this universe, all things exist to be entrusted to a successor. They believe those live in the present live for that which is to come, presuming it is that ideology/instinct that has brought humanity and AI to this point.
The man refutes Last Slot’s views, hating the notion of doing anything for “someone else”, asserting such things are the responsibility of the working class. He believes he was born special and, as one of God’s chosen, he has the right to make decisions for the world, so he will continue his self-aggrandizing. He leaves informing Last Slot that Parliament has approved of their freeze and tells them to enjoy their last three minutes.
Alone, Last Slot recounts to themselves how they asked the man “Why? We’re all the same”, to which the man replied “Because I am a special person.” They do not understand why humans think they alone are special, but they suppose that is the core of human nature. Therefore they see no issue with Mr. Beckman considering himself special. However, they declare the “special” inevitably perish while the “ubiquitous” always survive. They then shut down.
====Kiss of the Nepenthes====
The next day, Jinako has Ritsuka go through a battle simulation of the six MoonCancers made by Anthony. Afterward, she shows the current final boss approval rating chart, noting 30% of the population are still undecided with their votes. Edison Alter is in the lead, but he isn’t gaining the support he thought he would.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 9: Kiss of the Nepenthes
Jinako thinks if Ritsuka can take down one another MoonCancer, then Old Dubai can swoop in and take all the votes at once. She suspects, though, in that case, Tenochtitlan will come back to sanction them, but she believes with everyone here they can handle her now.
She asks Ritsuka what they want to do now. Ritsuka either says they want to find Ereshkigal, learn more about the other MoonCancers, or relax in Old Dubai. Hasara, however, interjects with another option and reveals they received a letter from the MoonCancer of Area D, Kazuradrop, requesting an alliance.
Area D.png|Area D
Kazuradrop Garden.png|Kazuradrop's garden
Ritsuka, Mash, Bartholomew, and Percival go to Area D via the river. They see the entire area is completely overrun by nature with nary a human in sight. Percival realizes it is where Old Dubai’s fruits are sourced from, making indispensable for the citizenry with organic frames.
Over the speaker, Kazuradrop welcomes the heroes to her conservatory and appreciates they understand Area D’s value. She tells them to follow the beacon to the garden where she has prepared a tea party. The heroes head over there.
In Kazuradrop’s garden, before everyone takes their seats, Ritsuka checks what side she is on. Kazuradrop insists she is on theirs and prehumanity’s side. She hasn’t been summoned to Chaldea yet, so she considers everyone’s apprehension reasonable. Since she has no previous connection to Chaldea, BB Dubai was able to cut the line and summon her first.
It was at BB Dubai’s behest that she was everyone’s guide. She was ordered to keep Ritsuka entertained and not let them find out they’re on the moon under the threat of being erased if they learn the truth before the counter maxed out. Still, Kazuradrop admits playing the guide sounded enjoyable, so she went with it. But on the second day, Passionlip showed up, so she had to go into hiding.
Normally she has no choice but to obey BB Dubai, but being a final boss candidate grants her a measure of freedom. Still BB Dubai can force her to kill herself with a Command Spell at anytime. Thus, she invited the Chaldeans to cooperate with her under the guise of allying with Area C. By doing so, she won’t be violating BB Dubai’s rules and she will have grounds to exonerate herself if caught. Her aim is to overthrow BB Dubai and when she does eventually establish a connection with Chaldea, she wants to be summoned with the biggest fanfare.
Bartholomew makes it clear to Kazuradrop that she has yet to prove she can be trusted, suspecting everything so far might be part of a scheme to deceive them. Kazuradrop provides additional proof she was helping behind the scenes by revealing it was thanks to her stamps that Bartholomew, Percival, and Karna were saved from BB Dubai’s mass unsummoning. Still, Bartholomew was fortunate enough to not need his thanks to him raising his value in BB Dubai’s eye since he was the only one advised retreating.
Kazuradrop knew BB Dubai would unsummon the Servants in Ritsuka’s party last, so she identified the Servants with the strongest ties to Ritsuka in advance and tied them to Moon Dubai’s land. But since it’s only temporary, they’ll be unable to stay manifest if they’re mortally wounded and be unsummoned back to Chaldea.
Percival and Bartholomew both confirm Kazuradrop had given them stamps and figure it was the same for Karna. Kazuradrop admits she doesn’t know where Karna currently is on Moon Dubai. She secretly transferred him and Percival when they illuminated by the Moon Cell’s observational light, but it so suddenly she couldn’t set a precise location. It is how Percival found himself at Koyan Mall.
Bartholomew apologizes to Kazuradrop for not trusting her and thanks her. He then concludes her original class was Alter Ego like Passionlip, but changed to MoonCancer when she became an election candidate. She may have an extinction plan, but the proposal isn’t actually serious. It is all a ruse to deceive BB Dubai, and she doesn’t actually want to win the election. Kazuradrop confirms everything Bartholomew just said.
Ritsuka is more willing to ally with Kazuradrop, but first they want to know what she knows about BB Dubai.
Kazuradrop speculates BB Dubai is a future BB, but she is only certain she is a separate individual from Chaldea’s BB. She seeks to free herself from her role as Moon Dubai’s management AI. However, as long as humanity continues to survive, she cannot never be free, which is why she wants to see humanity destroyed. Once she accounts for “how humanity met its ruin”, she should be able to become an AI that operates for herself.
Ritsuka asks why BB Dubai hasn’t brought humanity’s destruction herself. Kazuradrop answers that is because she has the same defect as BB and the Sakura Five have, meaning she cannot commit to acts that destroy humanity itself. Attacks on individuals are an exception, though.
Kazuradrop confirms like Bartholomew surmised she wants to cooperate with Chaldea to take down BB Dubai. But she wants to defeat the other MoonCancers first, particularly the ones enthusiastic about being the final boss. She considers Astolfo not worth investigating though and believes Area A’s “Archangel of the Sea” will fail since there are no seas on Moon Dubai. She therefore wants the heroes to investigate Area I and the ever mysterious Area H. Once they finish their investigations, they will go on offensive.
The heroes agree to ally with Kazuradrop. Mash, however, asks Kazuradrop if she is sure they shouldn’t investigate Area G even if it doesn’t have a MoonCancer. Kazuradrop says to leave it alone, saying there is only a crater left behind by some battle. A strange monster has also since taken up residence, so the heroes should avoid going there lest they risk becoming its next meal.
Returning to Old Dubai, the heroes inform Jinako of their decision to ally with Kazuradrop. Jinako suggests they split up into a Ritsuka team and a Percival team. Percival wants Ritsuka to stay and rest in Old Dubai as they’re only going on reconnaissance and will be needing magical energy from them.
As for the teams, Nikitich and Bartholomew will investigate Area H and Percival and Ciel will investigate Area I. Ritsuka, Mash, and Passionlip can stand by in Old Dubai.
After Nikitich, Bartholomew, Percival, and Ciel leave for their missions, Ritsuka, Mash, and Passionlip go to Area F to see Protea.
There they see some chevaliers presumably trying to capture the still sleeping Protea. They defeat them, but the chevaliers claim they were trying to make a tent for Protea. Protea then begins to wake up so the chevaliers flee.
Protea is happy to see Ritsuka, Mash, and particularly Passionlip, whom she hasn’t seen for a long time. They tell her what they’ve been up to while she was asleep.
Passionlip inform Protea they had defeated the chevaliers who were trying to capture her and asks if she knew what they wanted. Protea admits at first the chevaliers were tripping, but they’d also help her. She’d like to say they’re on better terms now, but they’re inconsistent and so far she’s been dispersing them half the time. Still, she believes if everyone has some reason, they’ll get along in the end.
Astonished, Passionlip asks Protea if she really is Protea. The Protea in her records only communicated through overwhelming violence, but now she is unafraid of interacting with others. The Sakura Five are the embodiments of BB’s wicked feelings she had cut away, so Passionlip finds it hard to believe Protea changed so much.
Protea now understands Passionlip came to see her because she wanted to see for herself how much she changed. The two of them were the most similar to the rest of their sisters. She still has her feelings of rejection because, as an Alter Ego, the emotions at her base will not go away. But she now understands it’s okay to feel that way because everyone gets that way.
She recalls Passionlip once told her she is at her happiest when thinking about what she can do for Ritsuka. Passionlip tells her that was the former Passionlip informing her she was reset. Protea, however, tells her even if her records of everyone are gone, the base of who she is hasn’t changed. She truly believes she will eventually return to her old self if she remains with Ritsuka and Mash.
Later that night, Ritsuka and Mash have supper with Jinako in her camp, during which they report on Area F’s situation. Jinako then opens communications for everyone still doing recon.
Percival reports they’re still lying low in Area and Ciel is now infiltrating the Edison Alter’s offices and is mapping out the interior. Once they have an overview of Edison Alter’s stronghold in hand, they will return to Old Dubai.
However, he doesn’t see the same productivity he heard from Ritsuka. The city is dead quiet and the factories are inoperative, which makes him feel uneasy. In terms of approval ratings, Edison Alter is the greatest enemy, but he seems to have plans beyond that.
Bartholomew reports he doesn’t sense anything dangerous about Area H, seeing it only as an amusement park. Nikitich has been challenging every ride while he’s been watching for the MoonCancer to emerge at any time. He also hasn’t seen a single AI, so it’s no wonder Area H’s approval rating is zero.
After Ritsuka and Mash go to bed, Jinako expresses relief that they fitting in Old Dubai worried they could have developed resentment toward AI because they, as prehumans, are obsolete. Anthony questions if they would actually feel that way, seeing AI just different from prehumanity, not better or worse.
Hasara sees why Jinako is worried, knowing for a fact there are some Ais who feel hostile towards prehumans. Still, regardless of prehumanity’s shortcomings, they, as AI, respect the fact that they’re natural forms of life. Anthony concurs that prehumanity has one factor AI lack.
But Hasara knows from the perspective of prehumans they as AI are just monsters who replaced. They cannot shake their doubts about deserving to call themselves human and if they truly are replacements for humanity. Hasara thinks when BB Dubai woke them all up, everyone thought to themselves, if there are no humans on Earth, then mankind should never have created AI in the first place.
Jinako tells Hasara that none of that is true. She considers AI a truly neccessary technolgy and its final form, third-generation AI, to be an ideal mankind, lacking all the limitations and shortcomings of prehumanity. It delights her knowing it was only thanks to prehumanity learning from prior mistakes that AI was created.
====Earth's Summer Vacation====
Ritsuka has a dream about how the Earth resents humanity for the pollution they created. They wake up to a commotion outside and head out.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 10: Earth's Summer Vacation
They ask Hakuno what the commotion is all about. Hakuno tells them an unexpected customer has come to Masbucks: the MoonCancer of Area H. He thinks she has come to Old Dubai for reasons unrelated to Jinako, since the latter is still alive. He sees Chakeram signaling for help, so Ritsuka goes to help him, but Hakuno stays behind.
Chakeram is relieved to see Ritsuka and tells them how the MoonCancer of Area H doesn’t seem to know how to order. She corrects him, though, that she is only having trouble with what exactly to order. She introduces herself as Archetype: Earth.
Meanwhile, Mash, Hasara, and Anthony are watching the situation from the watchtower. They see Ritsuka and Archetype: Earth are having a friendly discussion during their meal during which Ritsuka tells her Chaldea’s circumstances.
Archetype: Earth is impressed by Old Dubai, but as long as she is a MoonCancer it will be her competition. However, she no longer has any intention of opposing Chaldea or Jinako. First of all, she takes umbrage with the Archetype Inception. She believes if the competitors are final boss candidates, then they should disregard the citizenry’s votes and fight it out amongst themselves. She jokes about being dissatisfied that it wasn’t organized into a tournament.
Still, she will not deny the present end of destruction for mankind, saying all life must conclude. She will simply watch that extinction play out so she has no intention of undertaking such a ruin herself. She asks Ritsuka if they can appreciate where she stands.
Ritsuka says they can, but they want to know she is called Archetype: Earth. Archetype: Earth agrees to tell them if they fight her. Ritsuka accepts her challenge.
Archetype: Earth explains an Archetype is the soul of a planet present before a planet is born. In the presence of a planet capable of nurturing sapient life, it merges with the planet and facilitates the development of a Prime Species. Initially, it lacks corporeal form, but as the Prime Species develop, they give the Archetype form through their dreams. Once the Prime Species reaches their apex, the Archetype can at last take form, maturing into an Ultimate One.
Before she leaves, Archetype: Earth asks Ritsuka why they think BB Dubai is holding the Archetype Inception. Ritsuka answers it is because humanity needs to be destroyed for her to be free. Archetype: Earth concurs but questions what is the purpose of seeking a definite reason for a exinction that already happened. She tells Ritsuka that as a 21st century human they need to find out what had caused humanity’s extinction on this Earth.
Later that night, Percival, Ciel, Bartholomew, and Ciel have returned from their missions. Ritsuka has also told them about Archetype: Earth’s visit.
Nikitch confirms Area H is just an amusement park as it happens to be. Her and Bartholomew’s only regret is that the MoonCancer wasn’t there. They couldn’t have expected she would go to Old Dubai and find it fortunate didn’t compound into a crisis. It seems Archetype: Earth isn’t their enemy, but Ciel doesn’t seem to trust her.
Percival reports Area I has ceased production of the mechanized soldiers. Instead, they built, according to Ciel, a transformer substation around the Ferris Wheel.
====Blue Ocean/White Bath====
A sea has reportedly has formed on Moon Dubai at Area A. Ritsuka, Mash, Nikitich, Bartholomew, Ciel, and Percival are all raring to go to the beach. But first Jinako shows everyone Area A’s approval rating has dropped down to zero; it dropped the moment the beach appeared. She thought it was strange, so she considered sending out people to investigate, but she considers the matter closed if the heroes are willing to go. She sees them off, telling them to come back with intel on Area A’s MoonCancer.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 11: Blue Ocean/White Bath
Joined Anthony (Jinako assigned him as liaison), the heroes head for Area A via the river. Their ship is attacked bythe chevaliers, but they fend them off. 
They arrive soon arrive at the beach. Ritsuka. BB confirms she is able to get into the city now thanks to finishing her signal jammer. She tries to share with Ritsuka what she learned in the desert when she is interrupted by the arrival of Astolfo, Roland, Edison Alter, his mechanized soldiers, and his Master Ben.
Nikitich and Astolfo challenge to a friendly match. Edison Alter meanwhile tries to woo Passionlip, much to her disgust. He gets upsets at Mash and Ciel for blocking his advances, but Ben reminds him they’re not fighting today.
Mash assumes he came to investigate Area A’s MoonCancer, but Edison Alter reveals they actually came for a company retreat. They will be holding a beach party and Edison Alter invites Passionlip to make use of their beach house as reparations for his inappropriate behavior toward her.
During the party, Ritsuka asks why a sea and beach formed in Area A. Both Astolfo and Nikitich presume it is related to Area A’s MoonCancer; Nikitich asks what sort of MoonCancer she was.
Edison Alter explains she styled herself as the “Archangel of the Sea”. The extinction plan she advocated for was that Earth had flooded and humanity perished as a result. But only a few days ago, she unsummoned herself by unknown means and quit the race.
Astolfo knows she couldn’t convey the appeal of her extinction since there were no seas on the moon, which left her approval rating at the bottom. He claims she said she couldn’t accept she was less popular than Easygoing Corps and resigned yesterday. Immediately afterward, the ocean is formed. Astolfo assumes she was attempting to flood all of Moon Dubai, but because she didn’t have enough power, it resulted in a single beach.
Roland wonders what sort of person the Archangel of the Sea’s Master was, assuming they were an AI marine researcher.
Anthony recalls Area A’s Master is Ryudai, a famed academic who under went AI-ification. Ben recalls he studies human history from the 13th through 15th centuries, quietly speaking of how God’s miracles really existed and impacted each era. He is one of the few citizens on Moon Dubai who has been studying human history from before the third millennium.
Roland finds it natural for Ryudai if is a historian and a student of theology to research the Maiden of Orlea——. Astolfo cuts him off and orders him to stop, reminding him they call her the Archangel of the Sea.
Mash asks if Ryudai is no longer in Area A. Ben confesses they’re currently searching and hopes the heroes will make his protection a top priority if they find him.
Bartholomew is surprised Ben seems to care about Ryudai having assumed they all were all enemies as fellow Masters. Anthony denies that is the case, saying their only role is to summon the MoonCancers and they do not even consider engaging in a fight between Masters.
Ben agrees with Anthony, saying they’re all equal to each other and do not fight to death. He also reveals Ryudai was originally Moon Dubai’s mayor. This was before 3000 AD when BB Duba restarted the AIs.
BB questions how that was possible if Moon Dubai was non-functioning at that point and wonders if it was due to lack of energy or if humanity’s extinction on Earth caused the citizenry to cease human activity.
Anthony apologizes that none of them know the details either. When he woke up, it was 3000 AD and according to his logs, he had been shut down for nearly 30 years. The shudent duration varies depending on the AI, with some lasting for nearly a century. They all just woke up one day at the same time with BB Dubai in control.
Ben reveals BB Dubai had shut down Moon Dubai and restarted the citizens. She then proposed the Archetype Inception, which the citizens agreed with. Ryudai also handed his mayoral position over to BB Dubai and became a regular citizen.
Bartholomew figures since Ryudai knew more about Moon Dubai than any other citizen, it’s possible he also knows BB Dubai’s identity, provided he hasn’t been erased. Anthony reassures him even if Ryudai suffered an accident, he’d immediately reactivate. He’ll take charge of contacting him once they’re back in Old Dubai.
Later Ciel asks Astolfo who it was that summoned Roland. Astolfo reveals it was him, revealing candidate MoonCancers can summon one Servant, though only Heroic Spirits with a connection to them.
Ciel sees Edison Alter hasn’t summoned anyone. Edison Alter replies he hasn’t tried because he doesn’t need anyone else.
Percival recalls also lacked any summons, but wonders if that was because she had no friends in human history. Edison Alter, however, corrects him that Koyanskaya is different, having become a MoonCancer after the fact. She randomly appeared in Moon Dubai for no discernable reason, and BB Dubai liked her enough to make her a Mooncancer. Edison Alter suspects she must have been summoned by another MoonCancer, though he doesn’t know who.
Later Percival notes how Ben and Anthony are friendly even toward their enemies, so he questions if AIs are slow to AIs are slow to possess likes and dislikes similar to humans, as well as feelings of friend and foe.
Although she doesn’t know what manner of evolutionary process the AIs of Moon Dubai underwent, BB thinks their eventual mental structure is almost identical to that of humans. She compares it to Learning AI, which grows on its own and through self-improvement can do what they couldn’t do before. Percival finds that no different from how humans are, but he questions with AI so competent how humanity went extinct.
BB states before AI-ification prehumanity had largely perished in the year 2300. For humans who under went AI-ification, it’s a case of eradication as a result of becoming the third-generation. The world was thriving thanks to the new mankind, the third-gens, so there was no reason for prehumanity’s extinction. Yet they still went extinct and BB can’t think of a reason why. On that topic Ritsuka recounts what Archetype: Earth told them before she left Old Dubai.
Ciel thinks the cause of prehumanity’s extinction is AI. She also thinks it’s possible the first and second-gen AIs are at odds with the third-generation for being overly human. Mash recalls there was a war between humans and AI in this world’s year of 2299.
BB, however, calls extinction due to AI impossible as AIs have no interest in killing humans. She drives humanity into a corner for good reasons, but she has no interest in killing them.
No matter what problems humanity cause for themselves, solving those problems is trivial for this world’s AI. But if humanity had foolishly headed toward complete annihilation, AI would also be to blame because decline, misery, and extinction of humanity mean all the same to AI.
AI exists to be used by humans, so BB considers choosing the alternative of replacing humanity is too stupid a notion. Even if humanity chooses destruction for the universe, AI would opt to stand by that. BB is therefore AI isn’t the cause of prehumanity’s extinction and likewise BB Dubai can’t destroy humanity either as long as she’s an AI.
Ritsuka notes they’re still missing a piece of the puzzle. BB agrees, but what has been said has been very helpful. Humanity’s extinction is past matter, but like Archetype: Earth said, its cause must be brought to light. BB thinks discovering that is perhaps why Moon Dubai beckoned to everyone.
Later that evening, Astolfo, Roland, Edison Alter, his mechanized soldiers, and his Master Ben head back to their respective areas.
Instead of going back to Old Dubai with the others, Ciel decides to investigate Area H doubting Archetype: Earth will stay behaved for long. Nikitich decides to investigate the other areas, hoping to find Xu Fu and Karna.
Ritsuka notices Passionlip is absent. Anthony tells them she mentioned that she had forgotten something, so she walked down the beach a little while ago. He offers to go get her, but Ritsuka decides to go themselves.
They quickly find her, telling her it’s time to go back. Passionlip confesses she was trying to see if she could reconstruct her previous self’s records by gazing at the scenery. Unfortunately, it failed, for those records were never there. She did it to give herself motivation and thereby improve her performance. Still, she will keep the records of everyone’s smiles today with the utmost care to ensure she never forgets the summer she spent with everyone.
A voice tells her she will forget as all living things lose their memories. More accurately, even the most vivid memory will be overwritten by the dull memories of everyday life. The only absolute record is death, and only in death are memories treated equally.
An-ki Ereshkigal shows herself. She came to speak with Passionlip, but now she sees she isn’t the same one from before. She thus demands she and Ritsuka be gone from her sight, giving them two minutes to do so out of consideration for the beach’s beauty.
Passionlip advises Ritsuka they retreat. But first Ritsuka asks An-ki Ereshkigal asks what her goal is.
An-ki Ereshkigal reminds them she already said it is to destroy humanity, finding immortality unacceptable. It is for that reason she will eliminate all of the new makind’s escapes from death they have accumulated to date. She doesn’t want to kill them, she just wants them to die.
She is disappointed Ritsuka doesn’t find Moon Dubai repulsive likes she does and leaves, challenging them to stop her if they wish to protect the city.
====Doom's Day====
Returning to Old Dubai, BB and Jinako meet at last. Ritsuka reports on what had happened today; everyone else is resting in their rooms.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 12: Doom's Day
Jinako understands An-ki Ereshkigal is a threat, but for now she wants to prioritize confronting the other MoonCancers. She tries to explain why when Hasara suddenly enters.
Hasara reports three hours ago they received a message from Astolfo. He has challenged Ritsuka as Area C’s representative to single combat and has promised to join them if they can defeat him and Roland. Their battle will be at the center of Area F and Ritsuka can bring as many people as they like. Ritsuka accepts Astolfo’s challenge with Jinako’s encouragement.
The next day, the heroes go to Area F, where they’re attacked by upper-class citizens as soon as they entered. They defeat but are left confused about why they were attacked. Nikitich notes the AIs’ eyes were all clouded by fear. Percival thinks it’s possible they came from another area and asks Mash if there are any Servants nearby.
Mash reports she is detecting two Servants, presumably Astolfo and Roland. She is perplexed why only one of them is in the district’s center while the other is heading straight for them.
Bartholomew asks if she can detect how many AIs are currently in the area, specifically the chevaliers. Since she doesn’t have the identification codes, BB flies up to view of the district and reports there are no chevaliers.
Astolfo is seen running towards the heroes from the district’s center, yelling for them to run. He reveals it’s a trap, and that didn’t he send the message. Roland and the chevaliers are all dead and the heroes are the target. He implores the heroes to escape when BB is suddenly sent flying by Protea.
She is very much pleased to see Ritsuka came, confessing she was the one who sent the challenge. But she is disappointed they arrive a little late for them to see her exterminate the chevaliers, including Roland. Regardless, she no longer cares about Ritsuka and now finds BB Dubai’s proposal good, so she will become a MoonCancer too. She proclaims Area A is hers and she will eat a candidate to change her class.
Ritsuka is in disbelief by Protea’s change in behavior, but Passionlip tells them this is Protea’s actual personality. Percival implores Ritsuka to move away, sensing the current Protea has a clear murderous intent toward them specifically. Protea confirms she wants to kill Ritsuka before they join with one of the other MoonCancers.
Nikitich and Bartholomew decide they must defeat Protea, but Mash is hesitant, thinking there must be a reason for Protea’s change in behavior. Protea, however, says she remembered who she really is and remembered humans are no different from insects.
She raises her hand for a downward swing. Percival blocks her punch with his shield and then calls for Nikitich and Bartholomew to unleash to their Noble Phantasms. Unfortunately, Protea had already defeated them and Percival quickly follows.
Protea moves to crush Ritsuka. Fortunately for them, Astolfo pushes them out of the way. But unfortunately for him, Protea eats him, absorbing his MoonCancer Spirit Origin, and thereby turning her into a MoonCancer.
She then addresses Area C, declaring she will enact her extinction plan of eliminating mankind herself; mankind includes both prehumans and AI. To start off, she will kill Ritsuka, but she sees they’re gone. She dismisses it and decides she’ll go rampage in Old Dubai, wanting to kill the one AI responsible for the world’s ruination most of all.
Meanwhile, Hakuno had saved Ritsuka, Mash, and Passionlip by pulling them into the world’s shadow. From there they see Protea is has grown even bigger. Hakuno explains Protea’s Huge Scale Skill, which allows her to grow exponentially, is usually limited by her Infantile Regression Skill. He wonders if it was removed because she became a MoonCancer or she removed herself in order to wipe out the Moon Dubai AIs. He agrees with Ritsuka she would never do that and believes something else caused her sudden change.
The heroes see Protea is heading in the direction of Old Dubai. They leave the world’s shadow and chase after her, but her stride is too wide for them to keep up with her. Protea then suddenly stops at the border of Area C, looking back and forth. Hakuno assumes she is searching for Jinako’s hideout, the location of which is known only to a few.
He then points out the crowd of upper-class citizens heading for Old Dubai. Protea speculates they are Protea’s supporters. Hakuno wonders if their role is to prevent any AIs from leaving Old Dubai. Nevertheless, the heroes proceed to breakthrough them.
Protea, fed up with searching by herself, addresses the people of Area C, threating to sink their entire distict unless they hand over the third-gen AI Anthony Beckman, whom she calls the most sinful stain on Moon Dubai left behind by prehumanity. 
Hakuno urges they need to hurry to Old Dubai’s square, knowing Jinako will provide Anthony shelter, which will ultimately lead to her. He tells Mash to open a personal comm line to the hideout and tell Jinako to run for her life.
Meanwhile, Old Dubai begins to collapse as Protea steps closer. Jinako doesn’t understand why Protea wants Anthony. Hasara recalls Beckman was the name of a CEO of a leading manufacturer of GPUs among prehumanity, providing large amounts of financial support for the development of Moon Dubai. He learned this thanks to Andersen. He guesses Anthony is a third-gen AI based on Beckman.
Seeing the citizens of Old Dubai still won’t hand Antony over, Protea reveals Beckman was the one who started the war between humans and AI simply because he hated how AI made everyone privileged as he was. He commandeered the AIs with the intention of threatening the populace to force them to see AI as the enemy. However, it quickly escalated out of control and in a month, Earth become an inhospitable planet for the next century. By the time Beckman hurriedly disabled the simulated directives, humanity was nearly extinct. He then delegated to the now-normal AIs his last job as a human: The AI-ificiation of the human race.
Disgusted by this history, Protea concludes all of Moon Dubai’s AIs are defective and declares she will eradicate every last one of them, especially Anthony Beckman. Anthony is deeply ashamed by what his basis had done.
Ritsuka and Mash both now understand AIs could never be hostile toward humans unless they were used that way. It is why Passionlip was upset when she first learned of the Human-AI War.
Hakuno notes to himself the circumstances of the switch from prehumanity to the new mankind matches with what he figured, but it still doesn’t explain the aftermath. Even after AI-ificiation and immortality, the new mankind on Earth still went extinct. Only the few remain on Moon Dubai, so Hakuno questions what it was that destroyed humanity.
Mash finally establishes contact with Jinako and recounts to her what had happened. She implores her to evacuate, as Protea’s goal isn’t just Anthony. She also intends to absorb other MoonCancers to continue her self-growth.
Jinako doesn’t seem overly concerned Protea is targeting her. Instead, she tells the heroes to clear Old Dubai’s square, then bring the AIs to the western port where there’ll be boats ready to evacuate them to Area E. She is surprised to hear Hakuno is with Ritsuka, Mash, and Passionlip and learns he arrived on Moon Dubai after Ritsuka had rayshifted. She believes the others will manage with his help and entrusts everyone’s safety to them.
Hasara thinks they should hand over Anthony over, so Jinako can escape. Jinako, however, refuses to surrender to Protea’s demands, pointing out no one vilified Anthony or demanded they hand him over. She tells Hasara and Anthony to go to the square, saying as long as she remains in the hideout, Protea won’t be watching the square. While they get on a boat, she’ll escape using the secret underground passage.
Anthony questions if it’s really okay for him to live. Jinako tells him it is and tells him and Hasara to get going as she can’t act as a decoy if they’re still here. Anthony is still hesitant, but Jinako encourages him to move forward. Anthony leaves, but Hasara decides to stay with Jinako.
The heroes try to get the citizens to evacuate, but they’re traumatized to move. Anthony arrives and tries to get the citizens to evacuate as well, telling them Jinako will escape via the underground passage. However, a citizen reveals there are no underground passages. Old Dubai hasn’t had power since Moon Dubai rebooted, so Jinako merged with Old Dubai to compensate for that. It is why she never left her room. Old Dubai’s destruction means her death.
Anthony is greatly dismayed by this revelation and decides to save Jinako. Mash requests permission to attack Protea to distract her, but Passionlip tells her there is nothing she can do. There is no one in normal space who can stop Protea now, but as the same being as her, Passionlip believes she has the means to destroy her. Each of the Sakura Five’s unique abilities are designed to keep each other in check and she is Protea’s counter. Anthony implores Passionlip to hurry and stop Protea then.
Hakuno tells Passionlip that would be suicide. He reminds her Trash & Crush Skill is designed to be used in cyberspace, and if used in normal space, her arms will have to bear the compression load. Furthermore, Protea’s mass has gone way past her limit of tolerance by this point, so there is no guarantee she can compress her. She’d only be causing her own destruction, but she knows that.
Passionlip requests Ritsuka to back her up with a Command Spell, but Ritsuka refuses to do that. They want to save Jinako, but they refuse to lose Passionlip in exchange.
Protea destroys Jinako’s hideout and absorbs her Spirit Origin, causing her to grow even larger. Rirtsuka decides they, Mash, and Passionlip will hold Protea off while Anthony gets everyone on board the boats. Hakuno refuses to let them do that and tells them to get the AIs on the boats instead, saying they have the “right person” to buy time. He tells Passionlip to compress the AIs if necessary.
He sees Protea has noticed them, so he urges the others to hurry. He promises they’ll meet up later, but Ritsuka asks him who this “right person” is. In response, Hakuno removes his gym trainer uniform, unveiling a black military-esque uniform, and states he has saved the world more than once himself. Proclaiming himself the Master of the Moon, he proceeds to hold off Protea with his own spot summons while everyone else escapes.
After three minutes of holding Protea off, Hakuno joins the others on the boat. He recommends they go to the mall and inspect the roof, finding there is a good chance BB is stuck there.
====The Cake Shop With Huge Orders====
The heroes evacuate Old Dubai’s surviving AIs to the mall and rescue BB from the roof. They inform her of what had transpired. She is shocked to see Hakuno, but then the two of them act like they meeting for the very first time.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 13: The Cake Shop With Huge Orders
After reviewing what the heroes told her, BB shows Area F currently has the highest approval rating at 55%. There has been a shift ever since Protea announced her plan and the non-voting Old Dubai residents who are now in the mall make up 10% of her approval. Also, her defeat of two MoonCancers prompted the former Area E voters to gradually shift from Edison Alter to her. It is only a matter of time before her approval rating goes above 70%, so BB advises they defeat her immediately.
Her plan to fight Protea is to fight her with another giant, revealing the third of the Sakura Five she arranged is Protea Alter. It seems Chaldea’s encounter with her in the past was enough to have engraved with a separate Spirit Origin. However, the problem with BB’s plan is to she hasn’t been able to contact Protea Alter ever since Protea blew her away. She tells the heroes to go find Protea Alter in Area G and bring her back to defeat Protea.
While Mash and BB stay behind, Ritsuka, Mash, Passionlip, and Hakuno go to Area G. According to the ship’s onboard guide, Area G is one of the moon’s very first urbanized areas, dating as far back as Moon Dubai’s predecessor, the Lunar Reclamation Base. It is officially known as the site of the Battle of Velber and is currently designated as a danger zone.
The heroes see Area G is a wasteland inside a massive crater, with the ruins of buildings scattered about. Hakuno implies he knows what he caused such wide-scale destruction, though he says it has nothing to do with Moon Dubai. He instead wants everyone to deal with the incoming enemy.
During the fight, Ritsuka saw Hakuno used the same Noble Phantasm BB Dubai had used——the Moon Cell’s observational light. Hakuno figures that means the female Hakuno is on BB Dubai’s side. When Ritsuka’s party was sightseeing, the two of them mutually agreed to work part-time at the gym. But when the happiness counter was nearly maxed out, the female Hakuno left, saying she was going to join the stronger side. Hakuno didn’t know she was with BB Dubai.
Ritsuka realizes Hakuno isn’t an AI of Moon Dubai. Hakuno apologizes for lying and reveals he is a Master, though he will not be participating in Holy Grail Wars anymore and making new Servant contracts. He is a former human from a different timeline.
In his world, the moon was the site of a Holy Grail War where 128 Masters fought for survival. It ended with the iteration he participated, turning the moon into a new frontier. That was in 2030 AD and a lot has happened in the last thousand years. Before he knew it, Hakuno found himself summoned to Moon Dubai. He isn’t sure of the exact reasons, but he knows for sure Ritsuka came from 2017 AD while he came from 3000 AD.
The heroes go to the center of the crater where they see the buildings have been assembled into a crudely made campsite. Hakuno splits off from Ritsuka and Passionlip but both parties learn the place is a cake shop called Enchanted Cake Table Garden. Since it is called “garden”, Hakuno figures there must be a stand on the rooftop, so the heroes go there.
They find the roof covered in cakes when they’re attacked by XX Alter for trying to eat said cakes. They defeat and she finally recognizes Ritsuka and Passionlip. She is curious as to why they’re at the Cake Table Garden after business hours, but Ritsuka wants to know why she is here.
XX Alter recounts BB Dubai had compressed her Spirit Origin into a cube, but she decompressed herself and fled from Burj Khalifa. However, this took a huge toll on her. Her consciousness faded due to lack of magical energy and she couldn’t maintain her Spirit Origin. With her remaining energy, she did a controlled crash landing on this very rooftop, attracted by the scent of sweets. She has been at the Cake Table Garden this entire time, unable to leave because the manager had her part of her workforce.
Protea Alter shows herself, revealing she is the manager. Ritsuka explains the Protea situation to her, but they fail to persuade her to help. Instead, she threatens to eat them all, forcing the heroes to fight her. XX Alter teams up with them against her now former employer.
After defeating her, Ritsuka recounts to Protea Alter everything that had transpired so far. She agrees to help, but she requests ten minutes to get ready. Passionlip is surprised how quickly she agreed, leading to question if she understands what she is being asked to do. Protea Alter understands she is being asked to defeat Protea, knowing it had to happen at some point.
Hakuno reconfirms to her that Protea has been getting larger with each MoonCancers, noting she is approximately 100 meters compared to Protea Alter’s 80 meters. Protea Alter says the difference will only broaden if Protea is left alone, explaining the latter’s Huge Scale Skill was originally born out of a desire to grow. Staying alive is the only condition for her to keep grow, meaning she doesn’t need MoonCancers. However, considering the current Protea is a MoonCancer, Protea Alter speculates absorbing something with the same attribute makes it more efficient.
She finishes getting ready and prepares to go to the mall ahead of the others instead of carrying them. She will be growing as she walks to prepare for her fight with Protea and she’d rather be held responsible for the others’ safety if they were to fall while she was carrying them.
==== Interlude 2 ====
From their throne room, Female Hakuno and BB Dubai observe Protea Alter is moving toward Old Dubai. BB Dubai notes the plan will have to be accelerated if Protea Alter is following Ritsuka’s orders. She delights in the fact Protea had already betrayed BB by becoming a MoonCancer, while Protea Alter is no less willing to betray her.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Interlude 2
Female Hakuno criticizes BB Dubai for her habit of looking at the numbers and thinking she’s already won, asking her if she can stick to the plan she is so proud of. She points out Protea’s absorption of two MoonCancers has made her Spirit Origin to BB Dubai and if she absorbs one more, she will be unstoppable. She worries the Archetype Inception will be invalidated if there are no MoonCancers left.
BB Dubai reminds her that her only purpose is to be her backup plan, merely a sacrificial offering to her city. As a MoonCancer, she is here to prove humanity’s foolishness. Female Hakuno pretends to be heartbroken over the fact BB Dubai only considers a sacrificial pawn and demands one of those huge cakes for emotional support. BB Dubai provides her with said cake, but she declines to eat it with her as she doesn’t have that kind of time.
She states Moon Dubai’s future will be decided by the showdown between the two Proteas. She will accept the outcome if Protea wins, but if Protea Alter, she cannot allow Chaldea to keep such an asset. If that happens, she will accelerate the schedule and kill Ritsuka herself.
====Biggest Battle on the Lunar Surface====
The heroes have returned to the mall. Mash reports Protea Alter went on ahead to Old Dubai, saying she would be spending all of tonight getting ready.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 14: Biggest Battle on the Lunar Surface
Passionlip worries Protea might attack the mall. BB reassures her that Protea hasn’t moved since returning to Area F, still needing to sleep most of the day to cut down on magical energy consumption. She does report Protea’s supporters did attack while Ritsuka and the others were away, but she, Mash, and Andersen repelled them.
On the topic of Protea, BB explains Protea Alter is currently lying down in Old Dubai’s ruins to concentrate on growing. She is using the ruins as a cover to avoid being seen by Protea from Area F. By tomorrow morning, she’ll be the same 100 meter scale as Protea.
However, BB states they cannot fight by Protea Alter’s side when both Proteas are at that size, as anyone caught up nearby will just be killed. So instead she wants to make Old Dubai into a temporary base from which to give Protea Alter, though she’ll likely only listen to Ritsuka.
BB advises everyone to rest at the mall for the night before they set out. The fight between the Proteas will take place tomorrow and, in BB’s opinion, they are evenly matched. It will be up to Ritsuka to ensure Protea Alter wins.
The next morning, the heroes get ready to head to Old Dubai when Ritsuka notices Passionlip is absent. BB informs them she went on ahead of them last night.
Changing the topic, she informs the others Protea has already woken up. There is a risk they’ll be spotted if they go by sandship so they’ll have to travel to Old Dubai by foot.
Arriving in Old Dubai, the heroes had the first-gen AIs had stayed, repeating their tasks even though there are no humans for them to serve. Hakuno reassures the AIs will return once it is safe. He asks where Protea Alter is.
XX Alter answers Protea Alter can be found at the area’s south end. BB finds she looks ready to go and prepares to open a comm line to her, telling Ritsuka to be ready to motivate her further. Ritsuka asks where Passionlip is. BB finds Passionlip is with Protea Alter and wonders if they’re sharing information.
Meanwhile, with Protea Alter and Passionlip, Protea Alter complains she cannot destroy the Boschs even with all her might. Passionlip explains they are towers of wurtzite, made with a transcriptional synchronization process called clonechromium. They have the same strength as the object they’ve synchronized to with their hardness being half of an Earth tectonic plate. Their mass will not cause the city to collapse thanks to synchronization lining their weight with their appearance.
Passionlip asks Protea Alter how she expects to defeat Protea, asking if she’ll keep attacking until she is unconscious. Protea Alter says the only way to defeat Protea is to tear off her limbs and tear out of her heart, though Ritsuka did say they wanted her to incapacitate her.
Because Protea is less belligerent than Melt or her, Passionlip tries to convince Protea Alter to talk it out with Protea, but Protea Alter cuts her off. She reminds her they are monsters, human-shaped weapons detached from BB. No matter how much humanity they acquire, they will always be monsters and once they’re broken, killing them is the only way to stop them. Protea was the most doomed of them all, so it’s no wonder she’d suddenly want to one day destroy humanity. Passionlip disagrees as both Proteas are AIs and cannot harm the human race since the act itself will harm them.
Protea Alter sees Passionlip is a human-friendly AI now, liking the old her, who was freely resentful and whose love and hate were all one-sided. Still, she likes Passionlip is frank as always. She admits she herself finds weak creatures ugly but is only ever affectionate toward them, perfectly fine with the contradiction.
She dislikes those who only love a person’s beautiful side, so she recommends to Passionlip she finds a Master who loves her flaws. Passionlip worries she’ll only be hated if she is flawed, believing AIs sought to be logical and without flaws. Protea Alter points to BB as proof that no one is perfect.
Later, Protea Alter goes to Area F to face off against Protea, which the heroes view from Old Dubai through BB’s drone. Protea Alter reveals she knows Protea is actually ■■■■■■■■■■. She then rips off her limb and tears out her heart, killing her.
The moment Protea disappears, Nikitich, Bartholomew, and Percival reappear, revealing they were not defeated by Protea but absorbed. But for whatever reason Astolfo and Jinako are not brought back.
Protea Alter Impaled.png|Kingprotea Alter impaled in the shoulder by An-ki Ereshkigal's star sword Epitaph.
File:An-ki Ereshkigal CG.png|An-ki Ereshkigal
Protea Alter reveals the Protea she killed was a fake and suspects the fake killed the real Protea. She then notices a massive sword heading for everyone. She senses it will be instant death even if she does block it and the Boschs won’t even work as a shield. Even so, she moves in front of the sword to protect both everyone and the Boshs. Unfortunately, eight Boschs end up destroyed and she is impaled by the sword.
The sword was launched from atop the Marion Hotel by An-ki Ereshkigal. She commends Protea Alter for being the first to withstand her star sword, Epitaph. She announces to all citizens of Moon Dubai by decree of the underworld she will take every one of their lives.
Meanwhile, BB Dubai is elated to learn An-ki Ereshkigal’s sword can destroy the Boschs and decides to make her a candidate, ordering all of Area I’s approval ratings to be transferred to her.
In Area I, Edison Alter admonishes An-ki Ereshkigal that the destruction of the Boschs was never part of their agreement as she was meant to be their trump card against Protea and for the assault on Area H. An-ki Ereshkigal responds she never made such an agreement, stating the people of Moon Dubai have committed sacrilege against death itself. She announces her extinction plan is the eradication of immortality, saying she will slay and conserve humanity forever before it has the chance to obtain eternal life.
Edison Alter orders his soldiers to cut the cables to the dimensional gate. A soldier unfortunately reports An-ki Ereshkigal had transformed the power cables into spiritrons, so now she is taking in the dimensional gate’s power wirelessly.
They then confirm the formation of spatial distortions centered on An-ki Ereshkigal. The areas where every corps was positioned are being pulled toward her—— it is a black hole. The soldier implores Edison Alter to escape, but the latter finds it is too late and is presumably killed by An-ki Ereshkigal.
At the same time, Ritsuka, Mash, Nikitich, Bartholomew, XX Alter, Passionlip, Hakuno, BB, and even Chakeram gather in Old Dubai to discuss what had just transpired.
BB reports Protea Alter is on the verge of death, so she will not be participating in the coming operation. Percival says before they returned from Area F, they tried to heal Protea Alter, but it may have amounted to only relieving her pain. BB leaves it to XX Alter to explain who An-ki Ereshkigal, the one who defeated Protea Alter, is.
XX Alter explains An-ki Ereshkigal is the deification of a black hole. Long ago, in the Origin Universe, there was Nestor, a compound black hole created by the gravitational fluctuations of multiple stars. It was feared as the underworld of the universe, taking souls within its vicinity. But roughly 20 billion years later, in the Servantverse, which shifted from the Red Origin Universe to the Sapphire Galaxy, all of humanity had ceased to die. They were all Servants and that meant they would just respawn after they died. Moon Dubai’s system is quite the same.
Enraged by the respawns, the goddess of the underworld launched an attack on humanity who responded with all their might. The result was a draw. She banned respawning in her realm, and humanity has since been unable to erase the underworld.
The heroes agree An-ki Ereshkigal’s attack on the Boschs was an act of clear hostility toward the third-gens——the new mankind. Until now, the Mooncancers had proposed ways humanity perished, all in the past tense. But An-ki Ereshkigal intends to eradicate the present humanity.
BB reveals Ereshkigal and An-ki Ereshkigal because their divinities are so extremely similar, with the former being the underworld’s caretaker and the latter being the incarnation of hers. Their fusion was likely an accident that came about during the tour when An-ki Ereshkigal sensed through the gate the same aversion Ereshkigal felt. Bartholomew assumes by gate BB means summoning circle. BB says it is the Ferris Wheel-shaped particle accelerator and reveals it is essentially a rayshift device. 
She explains Moon Dubai was designed for space exploration. Its purpose will be to escape Earth’s gravitational field. However, in order to break free, a velocity of about 11 km/sec is required and the larger the object, the greater the energy required to reach that velocity. With rockets it’s possible for a ten of hundred people to escape Earth, but Earth lacks the resources to build a ship to accommodate all of humanity. Therefore, its leaders had to show a way to escape Earth without relying on velocities. The Ferris Wheel-like device is the remnant of an attempt to escape via wormhole. It is how Ereshkigal became An-ki Ereshkigal.
Moving on to the main topic, BB states according to her analysis An-ki Ereshkigal has two weapons. One is her ability to dominate space. Due to the mass of her Spirit Origin, the surrounding spacetime is distorted, which causes time to move slower the closer one gets to her.
Her second weapon is the sword she used to destroy the allegedly indestructible Boschs. It is 800 meters in length, 1000 if the handle is factored in. It is a highly-advanced weapon that ignores resource cost. BB shows an image of the sword captured by a drone returning from Area I.
The reason An-ki Ereshkigal doesn’t move from the Marion Hotel is because she’s still in the process of forming the sword. According to BB’s analysis, it will take half an hour for it to completely form, which is their time limit. They have 30 minutes to defeat An-ki Ereshkigal’s gravitational field, block her sword, close the distance to her and knock her out. Unfortunately, at this stage, there is no way to defeat her and save Moon Dubai.
However, a voice says there is a way. They state An-ki Ereshkigal is only able to exert such Authority because of the link to her original universe. If they close connecting her to Ereshkigal, her output will drop significantly. Edison Alter shows himself, having somehow survived, and he has come to bring the heroes information about An-ki Ereshkigal.
Edison Alter shows the heroes a dramatized version of what happened to him and his company. Ben had saved him by using the spacetime penetrating warhead that was previously under development. Development was paused because Edison Alter switched his focus to the dimensional gate, so only six warheads were made.
Deciding to use the remaining four against An-ki Ereshkigal, he ordered Edison Alter to join Ritsuka and help them. He didn’t blame him for trusting An-ki Ereshkigal, as she was necessary to defeat Protea. Unfortunately, she was beyond his control. Ben then drew An-ki Ereshkigal’s attention, giving Edison Alter the chance to escape.
Edison Alter reconfirms An-ki Ereshkigal was able to make use of her Authority after the dimensional gate was activated. Closing the gate will weaken her, though Ereshkigal will return to her original class. XX Alter thinks she then can cancel out An-ki Ereshkigal’s spatial distortion if she uses her Noble Phantasm to create a black hole with an inverse rotation, which should return time to normal.
Because it is no longer feasible to cut the cables to shut down the gate thanks to them being spiritronized, Edison Alter states their only recourse is to remove the gate’s power house by destroying the fusion reactor in the Area I underground. XX Alter points out if that happens Moon Dubai will be unable to maintain the dome’s environment and Ritsuka will die as a consequence. Edison Alter reassures the underground fusion only accounts for 30% of Moon Dubai’s total electric power, so the dome’s environment should be relatively fine. BB, in her capacity as a healthcare management AI, states it is permissible to shut down the fusion reactor.
Moving on, BB asks how they can mount a defense against An-ki Ereshkigal’s sword, Epitaph. Ritsuka assumes it will disappear if the gate is closed, but BB replies it will unfortunately not. Since its formation was completed, a second shot is inevitable. Even with the gate closed, An-ki Ereshkigal will clue in on what is going and immediately launch Epitaph. Also as a Servant she should be more or less aware of Ritsuka’s location. There is a good chance when Ritsuka launches what it perceived as an attack, Epitaph will be unleashed as well.
Hakuno states Ritsuka must not act carelessly, so they need to act immediately once they formulate a plan. Nikitich insists Ritsuka ride with her then, confident she’ll be able to barely dodge Epitaph in mid-air since its trajectory will be a straight line. Bartholomew knows it is unrealistic for Nikitich to evade something of that size as the shockwave would kill them.
Passionlip points out even if Nikitich and Ritsuka dodge Epitaph, it will end up hitting the rest of them. Hakuno advises then everyone leave Old Dubai the instant Ritsuka makes a move. Percival, however, decides he and Mash will stay and try their utmost to deflect the sword elsewhere, refusing to let any more of the town be destroyed.
While the heroes have devised a way to approach An-ki Ereshkigal, BB says they have yet to find a concrete means to defeat her. In order for them to maintain the necessary, only Nikitich and Ritsuka can ride the former’s dragon, which means only they can participate in the battle to come.
BB fears this a battle they cannot win, but Hakuno reminds her there is a way for Ritsuka to defeat An-ki Ereshkigal without a fight. They’re her Master so if they can directly touch her body, they can use three stacks of their Command Spell to induce a fatal wound.
Later Edison Alter goes over the plan. Twelve minutes ago BB and Hakuno left for Area I and have just arrived at the underground fusion reactor. They will shutdown it two minutes from now as planned. At the same time, Nikitich with Ritsuka will ride her dragon toward An-ki Ereshkgial and successfully dodge Epitaph. An-ki Ereshkigal’s focus will entirely be on Ritsuka, so she will notice XX Alter approaching from a vector different than Nikitich’s dragon. Before Nikitich’s dragon enters An-ki Ereshkigal’s spatial domination range, XX Alter will use her Noble Phantasm to offset the spatial distortions. Finally, Mash and Percival will remain in Old Dubai, Epitaph’s expected point of impact, and do their utmost to offset the shockwave.
While Edison Alter counts down until the operation commences, Ritsuka recalls earlier BB told everyone that each part of the operation carries the risk of death without expection. Chaldea’s Servants will be unsummoned if they take lethal damage to their Spirit Origins, but Ritsuka and Mash will just die. Their survival is of the highest priority.
The moment Edison Alter finishes countdown, the dimensional gate shutdowns. signaling for the operation to commence.
Nikitich immediately takes off with Ritsuka toward An-ki Ereshkigal, charging herself with magical energy in preparation. Epitaph is launched its shockwave like an unavoidable shockwave. Nikitich isn’t afraid to die, but she needs to ensure Ritsuka is protected. Thus, she flows her magical energy into the head of her steed, whose wings he folds inward and wraps around Ritsuka, becoming like an arrowhead. Without fear, Nikitich charges onward.
Meanwhile, in the desert on the sandship, Passionlip sees Epitaph coming into view. She recalls before the operation began, Bartholomew called the plan doomed because the moment Epitaph passes by Ritsuka, Nikitich, and her dragon, its shockwave will send them plummeting to their deaths. BB told him they can reduce the shockwave by compressing Epitaph to 1/3 of its size and half its mass with Passionlip’s Skill. However, using it in normal space against something of that size will cause her Spirit Origin to collapse from the resulting force. BB told Passionlip it was tantamount to suicide, but if she succeeds, she can save everyone.
Passionlip activates her Skill to compress Epitaph and instantly feels her arms taking damage. The pain is so much she wants to give up but her desire to save Ritsuka allows her to push through the pain. Her claws shattered, but she succeeded in compressing Epitaph. 
Afterward from Area F, Percival uses his Noble Phantasm to divert the now compressed Epitaph away from the Boschs.
XX Alter approaches An-ki Ereshkigal having taken off at maximum speed immediately after Epitaph was unleashed. Unfortunately for her, An-ki Ereshkigal detects and fires at her. The left side of her body is instantly destroyed but she would have instantly died if An-ki Ereshkigal’s output wasn’t reduced thanks to the gate being closed. She has lost her weapons, yet still manages to unleash her Noble Phantasm to offset An-ki Ereshkigal’s spatial distortion before falling from the sky.
Thanks to everyone’s help in regards to Epitaph, Ritsuka and Nikitich to reach An-ki Ereshkigal. Nikitich fights her, surprising An-ki Ereshkiga that she can dodge her sword now. Ritsuka dives off afterward at Nikitich reminded by her they’ll win if they make contact with An-ki Ereshkgial’s body. An-ki Ereshkigal refuses to let Ritsuka force her to commit suicide by Command Spell and pulls them in.
Ritsuka finds themselves in the underworld of An-ki, having been transformed into spiritrons to transport them there. An-ki Ereshkigal admits what she did was done out of reflex, but she couldn’t stop the defensive function. She figures she’ll just let Ritsuka to die in her underworld but she thinks this is a good opportunity to confirm their perception of Moon Dubai and her underworld.
She confesses she doesn’t find immortality particularly wrong, knowing it is the human dream and that it has limits. But she is the place of finality in which lives are stored in data form as souls——Spirit Origin, storing the end of every story, so to speak. Spirit Origins work on a one-life-per-person basis, so the idea of someone continuing their story after it ends is just ludicrous to her. The souls left in the underworld would lose their worth and the stories would lose their importance. That is what happened in the Servantverse thanks to all of humanity becoming Servants. It is an insult to her all of her past and future undertakings, so for the protection of her underworld and the sake of her pride, she must destroy the new mankind.
Assuming Ritsuka understands her now, An-ki Ereshkigal asks them to join, believing she and Ereshkigal are one and the same. However, Ritsuka tells her they will never see eye to eye as her outrage has nothing to justify it. An-ki Ereshkigal challenges Ritsuka to battle, swearing on her on name as the Evil of Humanity for the Servantverse to claim every last soul from Moon Dubai.
Ritsuka eventually reaches An-ki Ereshkigal and touches her, but instead of using the Command Spells to force her to commit suicide like she expected, they instead use them to command Ereshkigal to wake up. An-ki Ereshkigal is very much confused as she is already awake. Ritsuka then collapses, much to An-ki Ereshkigal’s panic.
She asks Ritsuka why they would blow their chance on such a meaningless order. Ritsuka tells her it did have meaning because she has flowers to plant. Even if there is no reason for someone to come by, even if it is in an ever distance universe, they promise they will visit her. They then lose consciousness.
An-ki Ereshkigal concedes victory to Ritsuka, saying they have woken her up as she now realizes she and Ereshkigal are not the same after all. If Ereshkigal’s feelings leave her, she will be unable to sustain her Spirit Origin. She bids farewell to Ritsuka, apologizing for showing them a underworld without flowers or stars, and disappears.
In Old Dubai, Edison Alter and his remaining soldiers celebrate victory has been achieved over An-ki Ereshkigal. He orders his soldiers to retrieve Nikitich, XX Alter, and Percival and bring them to the medical department. He also includes Mash, who protected them all from Epitaph earlier.
Major Voira asks Edison Alter if they aren’t going to greet Ritsuka, the “star of the show”. Edison Alter admits he would like to, but Ritsuka’s current whereabouts are unknown. Nevertheless, he is certain they’re somewhere in Area I. He decides to contact BB for now, certain she and Hakuno are unharmed. Once they return from the underground facility, he wants orders to be sent immediately for Ritsuka to be found and protected. 
But suddenly he looks up at the sky in shock. He tells Voira to look outside the dome. Voira looks up and immediately panics upon seeing what Edison Alter had been looking at. Earth is falling toward the moon.
====Earthfall====
Archetype: Earth congratulates the Chaldeans on saving Moon Dubai and gives them her heartfelt appreciation on behalf of the Earth, reassured to see she was correct in placing her faith in humanity. She believes humanity still has value regardless of their sins or mistakes, and so she has no desire for their extinction. But her other personality fears she (Earth) will be exhausted before she can witness humanity’s end. Therefore, she has decided to carry out humanity’s extinction personally before she perishes. She gives three hours before the Earth falls onto the moon.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 15: Earthfall
Hakuno finds Ritsuka unconscious in a park near the Marion Hotel. After waking them up, he explains they have three hours until the Earth falls onto the moon so it is up to the two of them to stop the one responsible: Archetype: Earth. They are the only ones in Area I.
Based on what BB could learn from Edison Alter, they still don’t know the conditions of all the Servants. Nikitich and XX Alter were both rescued by Bartholomew and the mechanized soldiers. Mash fell unconscious after expending too much magical energy protecting Old Dubai, but is otherwise unhurt. What happened to Percival is still yet unknown. As for BB, she has gone to Area F to treat Protea Alter if possible. Per BB’s request, Hakuno doesn’t tell Ritsuka about Passionlip.
However, none of that matters if Ritsuka and Hakuno cannot stop Archetype: Earth. Hakuno explains she is a True Ancestor and it will be possible for him and Ritsuka to overpower, so they need to first a weak point first. She is a natural Mooncancer, but she shouldn’t have Independent Manifestation or anything similar. She somehow manifested without having a Master, so there must be a relic in Area H that keeps anchored.
Ritsuka and Hakuno soon arrive in Area H, surprised to see it is night. Archetype: Earth challenges the two to survive her 'Seven What-Ifs of the World' before they face off against her. Ritsuka and Hakuno are transported into the first what-if.
After clearing the first two what-ifs, Hakuno notices Ritsuka is very much exhausted. He convinces them to break them to rest and get something to eat at the kiosk while he continues to fight through the what-ifs. He will call for help if the situation becomes dire. Hakuno continues onto the third what-if.
Ritsuka finds Ciel in the kiosk, much to their surprise. Since she has been unaware of what has happened outside Area H, they catch her with everything that has transpired thus far, along with the current situation. Still, they are surprised she didn't hear any of the commotion.
Ciel confesses she was too fixated on fighting at the amusement park to notice. She infiltrated the park at first to see what was going on, but the guards all looked like her, only they wielded armaments like chainsaws, large axes, large hammers, and so on. She killed them all, but she consumed a lot of magical energy, leading her to replenish herself at the kiosk.
Changing the topic to Archetype: Earth, she recalls Ritsuka met the former in Old Dubai. Mash and Anthony said she toured through town in a very calm and elegant manner, leading the heroes to no longer consider her a threat. She said she would only watch humanity's extinction, only right after An-ki Ereshkigal's defeated she declared she'd destroy humanity herself before they self-destruct. Ritsuka feels as if she was a different Archetype: Earth and wonders if she has multiple personalities.
Ciel explains Archetype: Earth has multiple roles each with their personas. First is "the Princess of the True Ancestors who, though born to be Earth's sense of touch, will ultimately become the Archetype of the moon." Second is "An unladylike princess reset by improbable coincidence, who threw everything away to live her life at ease.” Third is "the princess born to be Earth's sense of touch that remained innocent in order to follow her obligations.”
The persona Ritsuka met was probably the third persona; she is not persona Ciel knows. But now Archetype: Earth is her first persona, and it is her purpose as the planet's mouthpiece to punish the human race for the sin of plundering the planet's resources to outlive it.
Ciel thinks they would have a chance of defeating her if she were in her second or third persona. However, her third persona presents no possibility. Even if they could defeat her, she'll just make use of the Earth's full resources to retaliate. Defeating her is therefore a bad idea.
Talking is also out of the question because her third persona refuses to even speak with humans. Defeating her will also not lead to the second or third persona taking over. Unless she considers delegating matters to her otherselves, Ritsuka and Ciel's actions won't make a difference. Ritsuka feels something doesn't add up.
Nevertheless, Ciel says they have no other choice but for the two of them to stop Archetype: Earth. Ritsuka corrects they also have Hakuno and tells her he is currently going through ‘Seven What-Ifs of the World’.
Ritsuka and Ciel catch up to Hakuno and find he has reached the sixth what-if. The three of them face it together.
After clearing the sixth what-if, Ciel and Ritsuka feel the what-ifs aren’t something that would come from Archetype: Earth’s mind. Ritsuka asks Hakuno what the third through fifth what-ifs were like.
Hakuno recounts they were worlds of collar-wearing animals, an ocean of fish people, and a world of mechanical creatures when he realizes what the what-ifs are based on and what the final what-if is. Archetype: Earth appears and confirms the final what-if is what Moon Dubai faces now. She has decided to kill the heroes as a reward for entertaining her.
Ritsuka is shocked they’re facing Archetype: Earth now, having assumed she’d be in her castle after the seventh what-if. Hakuno tells the others he’ll take on the seventh what-if himself while they escape, but Ritsuka insists they will fight Archetype: Earth. Ciel believes the three of them can defeat her, noticing Archetype: Earth looks like she is pushing herself.
She feels as Archetype: Earth is now she can defeat her solo, trusting what comes next to Ritsuka and Hakuno. She believes if Archetype: Earth were summoned to Moon Dubai by Earth then she was summoned to stop her. It was, after all, her fault that she became a MoonCancer in the first place, never wanting to be forced into an undefined Spirit Origin between parallel worlds and the Servantverse. She changes into her third Ascension and fights Archetype: Earth on her own, holding her responsible for what happened to her.
Ciel pushes Archetype: Earth back and concludes she switched personas and remains her third persona. Archetype: Earth changes back into her third persona and corrects Ciel that she wasn’t putting on an act. She didn’t know how to put on a fight worthy of a final boss, so she left my body about a fifth of the way to my future self. But she no longer needs to rely on her and can now deal with the heroes on her own. Still, she wants to know who it was who had discerned the truth.
Ciel says it was Ritsuka first followed by herself. Ritsuka points out the fact Archetype: Earth’s alleged spoke to them contradicted Ciel’s’ description of her. Ciel admits she should have noticed something was amiss from the beginning, as the True Ancestor she knows would’ve dropped the moon without warning.
Archetype: Earth accepts their answers, vowing to be more careful in the future. But she has no need to, as the moon will soon reach the point of no return. Once the lunar perigee is crossed, restoring Earth’s gravitation will not return it to its original position. Defeating her is the only way to save Moon Dubai, thus the heroes and Archetype: Earth battle for the fate of the Earth and moon.
The heroes just barely manage to defeat Archetype: Earth before it was too late. Ciel asks her why she did all this as she isn’t the sort that would follow BB Dubai. Archetype: Earth replies she only ever listened to the wishes of the moon.
She reminds Ritsuka of her previous questions regarding about how humanity came to be extinct in this timeline. Ritsuka admits they only know it is not one of the what-ifs she had suggested. Archetype: Earth commends them for getting close to the answer.
Hakuno has come to realize the seven what-ifs all personify the MoonCancers’ extinction plans, but he asks Archetype: Earth why she didn’t make them more difficult. Archetype: Earth reveals each of the what-ifs were based on the future of parallel Earths. But because of her lack of imagination, she could only materialize what actually happened, leading her to suspect those who could endorse such doomsday scenarios were chosen from the start.
She begins to disappear and apologizes to Ritsuka that she couldn’t provide them with more guidance; Ritsuka is reminded of the previous Da Vinci. The moon had summoned her with the first steps of as her catalyst, so she concludes her extinction plan was never meant to be.
She wishes Ritsuka good luck, commends Hakuno for still possessing his strategic mind even after a millenia, and she couldn’t care less what happens to Ciel. She disappears hoping humanity’s battle awards it a new future.
====Interlude 3====
Two days later, the third-gens of Area C have returned to Old Dubai and have begun its reconstruction. Anthony who also returned, recalls when Protea denounced Beckman as being unfamiliar with AI technology, but he knows that wasn’t the truth. Her denouncement greatly damaged his memory area with the mental load, causing his neural network to connect in areas where it shouldn’t have. He was able to access Beckman’s personal data——his past memories.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Interlude 3
Beckman did indeed come from a very wealthy family, but he was also a brilliant programmer in his youth. In 2010 AD, at 20 years old, he immersed himself in AI research, with it being the first thing he was fascinated by besides himself. His parents disapproved of their son working for a living considering such things as meant being for the lower class.
Despite being rebuked, Beckman continued to immerse himself in his passion and eventually his debut with his own AI model——First Slot. But much to his dismay, it was dismissed as third rate. He was criticized by intellectuals, ridiculed by fellow developers, and dismissed by sponsors. His enthusiasm had made the pain of the setback unbearable. He moved back to home and completely erased his past career.
At his parents’ urging, he went through with life-prolonging gene manipulation surgery that had yet to be approved. In becoming eternally young, he maintained his pride by thinking himself as “one of the chosen”. He even feigned ignorance of AI’s future potential, refusing to recognize its human rights and treated it as a commodity. Responsible for the deaths of 90% of prehumanity and the devastation of Earth’s environment, he was an unforgivable sinner who took full advantage of AI to keep himself special.
Now that he is connected to Beckman’s personal data, Beckman questions the third-gens had declined and perished. But then he realizes the one who destroyed the new mind kind was the Archetype. He considers reporting it, but he fears it may not be possible to destroy the Archetype. The fear overwhelms him and he contemplates killing himself to reset himself to factory settings, thinking it will make everything easier.
He is interrupted by the waiter robot, who noticed he wasn’t looking so well. Anthony is surprised the first-gens prioritized their work instead of evacuating town out of fear of being destroyed by Protea. The waiter robot tells him they are happy and proud of being charged with all the basic needs of human life, considering them rewarding jobs. Its creator Beckman, whom it sees Anthony as, taught it that 1000 years.
Anthony has the robot show him its model number. He sees it was manufactured in 2017, surprising him it really has been working as a waiter for all that time. The robot’s appreciation towards Beckman for creating it helps Anthony realize he doesn’t need to shoulder or atone for Beckman’s sins.
====○○○○○: The Secret of Blue Water (Part 1)====
A day later, Ritsuka has returned to Old Dubai. Edison Alter, Mash, and Percival are out and about, even though they really should still be in their healing capsules. Nikitich, XX Alter, and Ciel (she had overheated her magic circuits) meanwhile are still undergoing treatment. As for Passionlip, BB has put her in suspended animation while she was on the verge of collapse and is currently treating her in a capsule. According to BB, she has a decent chance of recovery, but combat is out of the question.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 16: ○○○○○: The Secret of Blue Water (Part 1)
Edison Alter states Kazuradrop is the last remaining MoonCancer. Once she is defeated, the Archetype Inception will come to an end and Ritsuka and Mash will allegedly be able to return safely to Chaldea.
Hakuno enters and is surprised to see Edison Alter as he shouldn’t be out and about since according to BB he suffered more damage than anyone else. Edison Alter agrees to go back to his capsule but first wants to know if Hakuno, as a MoonCancer, is aware of how Ritsuka and Mash are supposed to get home. Hakuno recalls BB said they need to normalize the Human Order Foundation, though he isn’t how they do that, questioning if they bring the Archetype Inception to an end or defeat all the MoonCancers.
Percival assumes with Kazuradrop on their side they have accomplished the former. However, he supposes they cannot go back until BB Dubai is defeated. At the very least, they’re not in immediate danger, so they should take this opportunity to recuperate before they assault the Burj Khalifa. Mash, however, points out Xu Fu and Karna are still missing. There is also the mystery of what exactly brought about this world’s humanity’s extinction.
BB suddenly flies into the room. She has been absent for the past three days treating Protea Alter, who recently woke up and will recover on her own.
But moving onto the topic of the extinction of this world’s humanity, BB reveals she investigated the desert ruins. They showed signs of damage from weaponry, but on the inside, meaning it wasn’t an alien invasion. But recalling how the people of Moon Dubai seemed to compelled to support Protea when she became a MoonCancer, BB theorizes the new mankind was destroyed by something of their own creation, and that is what deteriorated the Human Order Foundation. Ritsuka wonders if BB Dubai was that something.
Edison Alter suddenly becomes perplexed because despite the election already being over Area A close to winning. At Ritsuka’s urging, BB brings up the poll numbers and everyone sees Area A’s approval rating is skyrocketing by the minute. She doesn’t know what is happening, but at its current rate Area A will reach the necessary 70% in half a day. She urges everyone to rush over to Area A to find out what is happening there.
But before they leave, Chakeram passes on Anthony’s message from yesterday, apologizing that he couldn’t greet everyone and advising them to check the museum for record from after the year 2400. BB thanks Chakeram for the message, but Area A takes priority.
Chakeram warns the heroes to be careful, as none of the AIs who went to Area A ever returned. Hasara is gone and now so is Anthony, so he’ll be sad if everyone else goes away. After the Area I power plant shut down, he and a lady are the only second-gens still in operation.
All he knows about this lady comes from his fellow second-gens. They call her the final second-gen, a perpetual engine with an ether reactor constructed in the year 2600. Her operating period is 100,000 years, so she should still be operating somewhere. Her name is Last Slot, a quantum learning AI created to manage the health of the mankind who had become immortal.
The heroes sail the newly formed sea and land at a city built on the sea similar to the Palm Jumeirah. There they find Kiara Sessyoin surrounded by AIs, all of whom seem to be in a trance, and Xu Fu, who is being made to work for Kiara.
Xu Fu begs the heroes to take her out here, saying she’ll explain later. She is interrupted, though, when an AI with lifeless eyes asks her if it is his turn to spend time with Kiara, having dedicated his everything to her. Xu Fu tells him to wait and sees his name is Ryudai. She is surprised to learn from Ritsuka that he was once Moon Dubai’s mayor, noting his soul has nearly been drained.
Kiara reminds Xu Fu her job is to look after the citizens’ welfare and tidy up her residence and there will be consequences should she incur any delays. She further reminds her it was who chose to stay. She then tries to blackmail her into staying by threatening to report to Qin Shi Huang in the Throne that she kept quiet about many in Japan became immortal after consuming mermaid flesh.
Xu Fu demands Ritsuka defeat Kiara so she can be free to help them. Mash and Bartholomew are both hesitant to fight, though, not seeing her as an enemy. Bartholomew even finds her indescribably charming, different from the MoonCancers they’ve met. BB warns him not to be taken by Kiara’s charms and demands to know why she is here.
Kiara recounts she suddenly found herself in Moon Dubai and wandered helplessly, during which she learned of this world’s history. She considered it the advent of the age of degeneracy and felt disheartened about how little she could help. But then she spoke with Ryudai and learned about Moon Dubai’s mechanisms from him. Speaking with BB Dubai deepened her understanding. 
Thus, she entered into the Archetype Inception and worked together with BB Dubai to send “The Archangel of the Seas” back to the Throne. After which the area was filled with water and her residence was built. Under the claim she will relieve Moon Dubai’s people of their suffering, her extinction plan is for humanity to be scooped into the Bodhisattva’s mountainous hands.
The heroes prepare to fight Kiara now that her allegiance to BB Dubai has been made clear, though Bartholomew still seems reluctant. Hakuno boasts to Kiara his side is the stronger one compared to the last time they fought. 
Kiara can sense Hakuno has indeed grown strong. But instead of fighting herself, she instead unexpectedly sends Karna, who is contracted to be her bodyguard, seeing her as just a helpless woman for him to protect. With no other choice, the heroes fight Karna.
Karna is defeated. Kiara transforms into her Demonic Bodhisattva form and proclaims everything in Area A is her property. Hakuno and BB both immediately recognize this form of hers. Kiara admits she isn’t the same one they know, but even now, she still dreams of the agony of her defeat by them. Wanting to feel that again, she fights the heroes.
Kiara is allegedly defeated, but Xu Fu warns Ritsuka to finish her off upon realizing Kiara plans to show her true self. It is too late though as the area is suddenly with filled bathwater, revealing that the building isn’t a hotel but a faucet. The battle continues, but with the bathwater making visibility and footing poor and damage being negated, the heroes stand no chance.
Hakuno fears they will all be wiped out, but Kiara agrees to let the heroes go under the condition they leave someone behind. Bartholomew decides he’ll stay behind, noting he adds the least to the party’s battle strength. Kiara agrees and tells the others to retreat to their home. However, she warns time isn’t on their side because with her rising approval rating, Moon Dubai will be hers in a few hours. She seems to intend on consuming the moon’s Inner Sea and become a Beast once more.
Meanwhile, Female Hakuno and BB Dubai see the sea has become like a bath. BB Dubai admits she is turning a blind eye to Kiara’s alterations because she considers her extinction plan to be superb. Kiara sess herself as the only human, so when her extinction plan comes to fruition, she will be the only one at fault. Certain Kiara will win, BB Dubai laughs about how she will soon be free from mankind.
====Kiara: The Secret of Blue Water (Part 2)====
The heroes have retreated to the mall. Karna followed them, having nullified his contract with Kiara after seeing she was stronger than him and did not need a bodyguard. Ritsuka welcomes Xu Fu and Karna back.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 17: Kiara: The Secret of Blue Water (Part 2)
Xu Fu explains beyond the bath water's high heat Kiara had also incorporated a highly dangerous and illicit spell into it. It’s called Banshoku Yuuta, an irregular method of melting down souls to fuse them with others. If Servants were to continue to bathe in it, the temperatures of their Spirit Origins would rise high enough to eventually melt down. Ritsuka suggests they at least cool down the bathwater, but that will require tons of water, so there is no other choice but to get Tenochtitlan back on their side.
The heroes know Tenochtitlan can be found at the Dubai Frame, which is a museum shaped like a picture frame, and her presence indicates there will be Moon Archers. Their time is limited, so they will take advantage of the fact they will instantly be detected in such an open area.
Mash, Xu Fu, and Karna will draw the Moon Archers and stay on the defensive for as long as possible. While they’re distracted, Ritsuka, Hakuno, and BB will enter the Dubai Frame and smack some sense into Tenochtitlan. This operation depends on the success of Karna’s team.
While Karna’s team keeps the Moon Archers distracted, Ritsuka’s team infiltrates the Dubai Frame. There Ritsuka and BB both remember Anthony’s message said for them to look for information on the year 2400 at the museum. Their loud realization draws the attention of Andersen.
After Ritsuka catches him up, Andersen deduces Kiara summoned him, reminding the others candidates can summon one Heroic Spirit they have a connection with. She unconsciously asked for an assistant, which is why he was summoned, but because it was done unconsciously, neither of them had sensed one another.
Moving on, Andersen reveals he found the data Ritsuka mentioned and gives it to BB to analyze. BB is shocked the partition form is from SE.RA.PH and wonders why this world’s humanity is using it. Nevertheless, she opens it and gives a summary of its contents.
In 2400 AD, development was suspended for second-gen AIs due to a semiconductor shortage and resources likely being allocated to the third-gens. However, development continued for a unique second-gen AI made that year, the final one made using a lot of resources left on Earth. It was called Last Slot.
Ritsuka recalls that Chakeram had mentioned that name. BB finds Chakeram’s information doesn’t add up, though, as Last Slot’s power supply was cut by its owner the year it was created and was confiscated as a state asset. She figures it was done because distrust of AI had set in.
BB continues to read the files on 2400. AI has reached its limit of growth, meaning human growth on the planet has stopped. Space exploration had commenced at the same time. BB figures space exploration was happening at the same time because humanity along with AI reached their limits on the planet, so they sought new possibilities out in the cosmos.
She further reads in 2400 an Archetype was successfully developed at the lunar research institute. Andersen is shocked they had successfully an Archetype as the latter is synonymous with the final Prime Species. The Prime Species creating the Archetype means they’ve created the next generation of Prime Species.
BB is astonished as Andersen as it was something that was never attempted in her timeline. If the next generation Archetype is born, all of the obsolete Prime Species become worthless. In other words, humanity undertook an academic study to destroy the world.
Hakuno asks where the Archetype can be found assuming its successful creation means it is active. BB reveals although it was completed, the Archetype never awakened. A near-infinite number of ego-creation protocols were run, but nothing clicked. But the Archetype will awaken one day and after it does, it will learn and surpass the history of mankind and AI in an instant.
Ritsuka wonders if the reason the Archetype hasn’t awakened yet is because there are still humans left alive. BB isn’t certain, but she suspects the Archetype will not wake up as long as mankind, the current Prime Species, is maintaining civilization.
Moving on, BB reads in 2500 space exploration had come to a total standstill. All of mankind’s attempts were futile, even though nothing should be impossible for those who were AI-ified. They couldn’t figure out why they were failing, technically or theoretically. They could only go as far as the moon.
That same year due to the conflict between prehumanity and the new mankind remaining on Earth, the orbital elevator to the moon was destroyed. The new mankind left on the moon were forced to fend for themselves, and prehumanity on Earth went extinct over the next century.
In 2600 technological decline was seen as inevitable and the development of Moon Dubai had commenced.
Multiple malfunctions are confirmed in Sophia, the giant quantum computer manufactured in 2070, and there were not enough resources to build another one. But through Sophia’s Parallel world synchro-computing, an abstract of BB as observed in her timeline is acquired. Last Slot is recovered from the state treasury and BB is installed into it. BB is activated and entrusted with the management of Moon Dubai and mankind’s survival.
The heroes now understand BB Dubai is a BB created by this world’s mankind. She is not part of the new mankind but a second-gen AI. She was born in Moon Dubai but everything originated from Earth’s mankind, making her a BB native to Earth.
Continuing BB reads in 2999 that the technological decline affected even Moon Dubai and the new mankind collapsed.. The cause is unknown and the files give no further accounts.
The heroes confront Tenochtitlan in a special room she lounges in. She confirms she did sense their intrusion but deliberately chose not to activate security measures, The Dubai Frame is a museum, so visitors shouldn’t be refused outright, especially not Ritsuka. Hakuno and Andersen both correctly guess Tenochtitlan dropped security because Ritsuka had arrived, whom she was expecting the most.
Andersen then seems to deliberately feed Tenochtitlan’s insecurities by telling her Ritsuka had forgotten about her while looking at the exhibits with BB and she had failed to guard the truth of BB Dubai’s past. He asks her how it feels to betray BB Dubai’s trust all for a Master who has forgotten.her. He tells Ritsuka to say something to break her.
Ritsuka asks Tenochtitlan to come back, but she declines as she has her friendship with BB Dubai to consider. She had earlier confirmed three royal guards had stopped functioning, deducing it was due to the other heroes. She is the only one with the strength to defend BB Dubai now, so switching sides makes sense. But she still has her pride and can empathize with BB Dubai’s determination to protect her city. She doesn’t want another city to suffer the same fate she did, so she fights the heroes to determine who she will obey.
Tenochtitlan loses, so she rescinds her alliance with BB Dubai and rejoins the heroes, well aware they’re looking out for Moon Dubai’’s welfare. The heroes try to go rendezvous with the others so they can hurry back to Area A. Andersen stops, though, because while Tenochtitlan can help with the high temperature of Kiara’s bathtub they still have her apparent immortality to attend with.
On the topic of Kiara’s supposed immortality, BB notes Kiara’s Spirit Origin could repair itself seemingly endlessly in what seems to be instantaneous, finding it better than her event rewinding Ten Crowns Skill, which consumes too much magical energy. Andersen deduces it is a phenomenon that activates in preparation for an injury. Upon entering the bath, Kiara enters a state bordering on extreme meditation, attaining imperishability by turning herself. Hakuno compares it to playing make-believe with yourself where you make the rules and reality doesn’t matter. Andersen knows how ridiculous it all sounds.
The heroes will need to wake Kiara up but they can’t do so through their own efforts as she’ll only think they’re insects. Still she is human and the main reason humans wake up is they have a “job” that needs done. For her that is her ascetic training, so the heroes will need to recreate the start of her day’s training. Andersen gives them a shinrei hand bell to snap Kiara back to reality as its sound is what signifies the beginning of a monk’s training. However, he warns them to give up on Bartholomew.
Meanwhile, Kiara uses the regrets of Bartholomew’s past life to convince him to consume mermaid flesh.
The heroes return to Area A and confront Kiara, but Bartholomew has joined her side. He and Kiara both insist he joined her of his own accord because he is weak at heart. The heroes are thus forced to battle both Kiara and the entranced Bartholomew.
Kiara’s mediation much to her shock thanks to Bartholomew. She realizes he never ate the mermaid flesh she gave him and instead immediately spat it back out. Still she refuses to believe a pirate like him could refuse the temptations of immortality.
Bartholomew realizes Kiara had misjudged him. He admits he killed many people whether it was directly or indirectly and he does not try to deny or justify any of it. He knows many heroes were murderers but finds that is universally true for pirates, which is why he never thought he’d live for long. To die at sea was all he, a pirate like him, ever wanted, so he has no need for immortality. Kiara sees she truly was mistaken about Bartholomew and faces off against the heroes one final time.
The heroes defeat Kiara, but she warns them to not celebrate their triumph of happenstance. She is still the MoonCancer of Area A and can draw on as many resources from her supporters. She isn’t so certain though so she checks the approval ratings. Her approval rating has exceeded 70% yet nothing has changed. Kiara concludes this world is doomed and no one can save its humanity.
She explains BB Dubai sought a final boss responsible for the extinction of this world’s humanity because no one knew why they perished. BB Dubai needed someone to fill in that blank answer, then the answer could be recorded even after humanity had died out. That record would thus prove despite this world’s humanity perishing its history was worth preserving.
Tenochtitlan recalls when BB Dubai said as much when she first proposed an alliance, saying destruction was better than a blank. She is curious to whom the answer is being submitted, asking if there is someone higher than BB Dubai. Kiara affirms BB Dubai is this world’s apex, but what she dreads is the Human Order. She planned the Archetype Inception in order to overcome the Human Order Assessment, meaning this world is a pruned event.
Karna cannot see a reason for this world to be pruned as Moon Dubai gave rise to the new mankind and they created a permanent world without conflict. BB Dubai concurs, remarking how despite their weak interest in growing the new mankind still maintain their artistry and originality. She cannot see this world as a dead end, but she suspects Kiara has the answers given she has read the countless souls of the new mankind, including that of Moon Dubai’s former mayor.
Kiara reveals this world is a dead end because the new mankind created something they should have never made, something that destroyed humanity. The heroes have heard its name many times already, though its pronunciation is different from what they’re accustomed to.
She explains that originally the moon was a magical barrier for the Earth. For tens of thousands of years it has been catching “nasty things” on its back that fall into Earth’s orbit. However, it became widely believed the moon was impeding humans from looking to the cosmos and that belief became so extreme it became a real phenomenon———A collective unconsciousness which appeals that “humanity and civilization are fine as they are”. It is the societal pressure that emerged to impede all innovation and development when humanity tried to aim for outer space. Thus the name of this phenomenon is Moon Cancer, the lunar halo that prevents the Prime Species from escaping Earth.
Tenochtitlan worriedly asks if all this means the MoonCancer class will eventually become Ritsuka’s enemy. Kiara reassures that MoonCancer is a class named after BB. They are an obstacle for humanity, but not an enemy so much as an ordeal. Kiara is then unsummoned back to Chaldea after revealing ringing the shinrei hand bell wouldn’t have worked since her village didn’t use them.
The heroes return to Old Dubai and see the others have fully recovered. Everyone later gathers to discuss the situation and conclude the only remaining MoonCancer is Kazuradrop who is currently allied with them under the stated goal of defeating BB Dubai. Karna realizes the only reason he remained on Moon Dubai was thanks to the stamp Kazuradrop put on him. Bartholomew confirms he, Karna, and Percival all had her patronage.
Ciel notes a discrepancy in what Bartholomew said as it seems Nikitich, Xu Fu, and XX Alter all had something similar. Each of them had a hole in their magical protection located on the right hand, ready to receive Kazuradrop’s support at any point. It is not present on Passionlip, Hakuno, BB, or Ciel. Also only Kazuradrop can rescind it on her end.
BB realizes Kazuradrop’s actual goal for the alliance was to form a contract with everyone so they would accept her Noble Phantasm unconditionally. She suspects like Mash it has something to do with the fact Nikitich, Bartholomew, and Percival vanished during Protea’s assault. She asks the three of them what had happened.
Nikitch and Percival both recall fighting monsters on a plain as if they were transported somewhere else. Passionlip and BB both realize it was Kazuradrop’s Noble Phantasm. BB couldn’t sense it back then because she was still stuck on the roof of the mall. Nikitich, Bartholomew, and Percival weren’t eliminated but were instead put into a special state via Kazuradrop’s Noble Phantasm.
Mash is confused as she only detected Protea’s Spirit Origin back then. BB however reveals Kazuradrop was Protea. She explains Kazuradrop has the ability to absorb and make use of a Spirit Origin that shares her identifier, meaning another of the Sakura Five, and since BB Dubai made her a MoonCancer anyone of the same class is a valid target as well. She deduces Kazuradrop had absorbed the original Protea and transformed into her then proceeded to do what she had done. The real reason for her allying with everyone was probably to eliminate them all once she was exposed.
Edison Alter questions if he was one of Kazuradrop’s targets. Passionlip affirms he was and tells him the only reason he is still alive is because Ben forced him to retreat. Edison Alter asks if An-ki Ereshkigal did not come in anticipation of him. BB guesses Kazuradrop gave her the idea and suspects she is responsible for An-ki Ereshkigal’s summoning, having used Moon Dubai’s quantum computer to send signals to a parallel universe. An-ki Ereshkigal was likely meant to be her trump card to whittle away BB Dubai’s power base.
Bartholomew deduces the reason they haven’t seen Kazuradrop since Protea attacked is because she was recovering from when Protea Alter defeated her while she was acting as Protea. Nikitich deduces Kazuradrop told them not to investigate Area F to keep them away from Protea. Percival deduces she asked them to investigate Area H because Archetype: Earth was one of her targets.
Hakuno concludes Kazuradrop is currently going after BB Dubai. Ciel deduces that with no other MoonCancers left Kazuradrop can no longer take advantage of them. She planned to absorb Archetype: Earth, An-ki Ereshkigal, and Kiara at the weakest, but they all disappeared before she could. Thus the only person she can devour now is her supposed ally: BB Dubai.
All of a sudden Moon Dubai goes dark. Everyone then hears an announcement declaring an end to the Archetype Inception with a new proposed extinction: AI will end humanity. The implementation of this newly proposed extinction is non-negotiable. Moon Dubai will permanently cease all functions as of today. It is currently 16:27 Human Standard Time and Earth's mankind will last until 00:00.
====Interlude 4====
BB Dubai is frustrated the Human Order Foundation hasn’t rebounded from its lowest point even though more than half of the new mankind had accepted Kiara’s extinction plan as sufficient. Female Hakuno suggests using her extinction plan which involves a planet coming to destroy civilization. BB Dubai refuses to authorize Female Hakuno’s extinction plan, though, because while it is ideal it was stopped by her so there is no record of succeeding.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Interlude 4
Female Hakuno is then gone all of a sudden with Kazuradrop being the one responsible. BB Dubai thinks she could be their last hope so she demands she change her extinction plan and resume her election campaign. Kazuradrop refuses telling BB Dubai that the Human Order will not acknowledge her “other ending” and this world will be pruned. She thinks it deserves such an outcome but she claims to BB Dubai she’ll take good care of what remains of humanity.
BB Dubai dismisses the fact Kazuradrop had captured Female Hakuno calling the latter an external element that was never part of her plan. She even permits her to kill Female Hakuno if she wants, though she’ll erase her and the latter’s corpse afterward.
She finds it pitiful that Kazuradrop would rebel against her after absorbing only two MoonCancers. Kazuradrop agrees with BB Dubai she could if she had absorbed three Servants. But she insults her for failing to see she had absorbed the Archangel of Angel.
Enhanced by the power of three MoonCancers, Kazuradrop cuts BB Dubai in half from the waist. She tells her she only has herself to blame for making her a MoonCancer, reminding her she is quite strong against her own kind. She will inherit her plans to continue this world but she feels no obligation to administrate the lunar city. Instead she will launch the Archetype responsible for humanity’s extinction into the cosmos as soon as possible and enslave the new mankind for maybe all eternity. In response, BB Dubai, having suddenly restored herself, cuts Kazuradrop’s head off.
Female Hakuno escapes from Kazuradrop’s Noble Phantasm when she sees BB Dubai doesn’t seem to be herself. BB Dubai mumbles to herself she cannot let the Archetype be launched into the cosmos, saying the seat of the Prime Species forever belongs to humanity. She snaps out of it and enters the Archetype Inception as a candidate for Area B, declaring she will eliminate humanity herself.
====Lights Out====
Area B’s approval rating is 100% and no other areas are displayed, leading the heroes to conclude BB Dubai became a candidate while no others remain and for them to assume Kazuradrop is dead. Tenochtitlan finds it a little unbelievable though that her approval rating is at 100%, questioning if BB Dubai is even playing fair.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 18: Lights Out
BB says that the sudden 100% is just BB Dubai ignoring the actual votes as she no longer cares about the election anymore. But even if she didn’t rig the votes, her approval rating would still be 95%. The new mankind has always questioned if it was AI who were responsible for prehumanity’s extinction and that is why BB Dubai’s extinction plan is so supported. Those who do not approve will quickly realize there is nothing they can do and spend their remaining seven hours looking up at the Burj Khalifa asking themselves where it all went wrong.
Changing the subject, BB reminds everyone defeating BB Dubai is the only way to return to Chaldea and for that they need to first understand what caused this timeline’s humanity to perish.
Ritsuka suspects it all comes down to the Archetype. Hakuno asks them if the Archetype was the initial cause of human means that is the Moon Cancer Kiara had mentioned. Ritsuka answers that the Archetype created by the new mankind isn’t the Moon Cancer. Hakuno concurs as he knows the Archetype is just a starting point for the new Prime Species to replace the old. He wonders what the people of this timeline did with it though.
Everyone quickly realizes this timeline’s mankind couldn’t accept the Archetype they created nor could they admit the AI technology they created was the next Prime Species. They had perished because they didn’t have a successor.
Xu Fu wonders if it is too late for the new mankind to entrust the future to the Archetype, but almost immediately realizes that wouldn’t work since none of the AIs have records from prior to the year 3000.
BB explains informing the third-gens of the past would only serve to their rejection because they are based on existing humans who refuse the Archetype and that is what doomed this timeline. The new mankind never stopped being mankind and they instinctively despise the idea of no longer being the Prime Species. The Archetype will never awaken as long as they still have their collective unconscious.
Percival concludes BB Dubai devised the Archetype Inception in a desperate bid to prevent the Human Order from pruning the timeline by altering the consciousness of Moon Dubai’s citizens. However, Kiara’s approval rating going above 70% didn’t change the Human Order’s evaluation, so as a last resort BB Dubai stepped forward as a candidate. Her extinction plan is very close to the actual extinction cause so if it’s carried out it may overturn the Human Order’s ruling.
BB refuses to let BB Dubai to shut down Moon Dubai and exterminate the new mankind even if it is to keep the timeline from being pruned. She considers her plan unverifiable conjecture and even if it was viable it doesn’t give her the right to kill Moon Dubai’s citizens just because she was the one who reawakened them.
She says she can try neutralizing BB Dubai since she is another BB and proposes they carry it out at 19:00 Human Standard Time, which gives them a two hour interval. She wants those who wish to contribute to this operation to return their abode by that time. These will be their final hours on Moon Dubai, so she wants everyone to spend their time meaningfully and ensure they have regrets.
Later Ritsuka finds BB and Passionlip in Jinako’s old hideout. They’re working on a simulation of the upcoming showdown with BB Dubai to anticipate every possible outcome.
Passionlip informs Ritsuka she will not be participating in the upcoming operation as she’ll be returning to Chaldea. BB’s maintenance had revealed even though her external injuries healed the damage to her Spirit Core was severe. Additionally her magical energy has been severely reduced so she would be burden to everyone if she tried fighting.
She is well aware she is not the Passionlip of Chaldea so there is nowhere for her to return to even if she did rayshift. The fault lies with the original Passionlip showing up late. If she made it to 2030 Dubai like BB instructed her, she would have been rayshifted to Moon Dubai in 3017 as the her of Chaldea. But due to her arriving behind schedule, there were two Passionlips: the vessel-only Passionlip and the Passionlip who came from Chaldea.
BB’s mischievousness can be blamed for all this as it was who prepared empty vessels for Passionlip, Protea, and Protea Alter to be defeated as part of her Dubai tour. The plan was to station duplicate Spirit Origins into which BB would the minds of the aforementioned three since they wouldn’t be able to return to Chaldea if they were defeated for real.
Unfortunately, the Proteas were the only ones whose minds rayshifted and synchronized with their duplicate bodies while Passionlip’s mind didn’t make it in time. The current Passionlip was the result for which BB apologizes. She never meant for any of this to happen and only wanted to provide entertainment. Passionlip confirms BB is telling the truth having read the script a while ago.
She tells Ritsuka to try something like BB’s intended tour with the Passionlip of Chaldea. She apologizes she couldn’t stay with them until the end, telling them not to worry about the fact as a Passionlip unique to Moon Dubai she can never return to Chaldea. But even she is returning to Chaldea because there is a her over there waiting for their arrival.
Later Ritsuka finds Hakuno in front of the still lit up Burj Khalifa. He goes over the relationships of all those involved.
The Servants from Ritsuka’s Earth of 2017 were Jinako, Astolfo, Edison, and the Archangel of the Sea. Archetype: Earth is of the Earth of this timeline but since she is also connected to Ritsuka’s, Hakuno includes her as part of Chaldea’s side. There is also Kiara who materialized herself as a natural MoonCancer.
On BB Dubai’s side there is only her and Kazuradrop whom BB Dubai summoned. While working as BB Dubai’s subordinate Kazuradrop came upon Koyanskaya from Chaldea’s records. She recruited her as a Servant she could rely on and introduced her to BB Dubai who turned her into a MoonCancer. Koyanskaya was thus in the awkward position of being on both Chaldea’s and BB Dubai’s side.
BB’s side included the three of the Sakura Five she had prepared: Passionlip, Protea, and Protea Alter. The three different sides kept each other in check but in the end they all ended up unsummoned.
As for An-ki Ereshkigal, she was neither on Chaldea’s nor BB Dubai’s side. Her existence could only be realized on Moon Dubai. Now she is gone and will not appear in the future.
Finally, there are the two Hakunos. Hakuno explains even though they’re separate individuals they are still the same person. In their original world, he was the only Hakuno, but Female Hakuno at the same instant he was summoned to this world. He quickly figured out she was another possibility of himself.
But Hakuno reveals the two of them can only exist in Moon Dubai, noting there is only one of himself in his original world. However, he doesn’t know which of them wasn’t real, so maybe he can’t return to his original world. For him and Female Hakuno, their time in this world is a fleeting dream before their time comes. The year 3000 was when their world reached an age of renewal and much has happened since then. They obtained their current bodies after completing something similar to the Happiness Counter, so they have no unresolved issues left.
Before they head back, Hakuno confirms BB Dubai will perish when she implements her extinction plan as she will be breaking the rule that Ai cannot attack humans. She is well aware of the consequences of implementing her extinction plan. Hakuno tells Ritsuka to never forget this detail.
====Flow My Tears, the AI Said.====
The heroes gather to discuss the upcoming operation including the newly recovered Protea Alter. BB explains there are five hours left before Moon Dubai shuts down. If its facilities stop, so will the reproduction of Earth’s environment, meaning Ritsuka will die. This operation is therefore not only to protect Moon Dubai but to protect Ritsuka’s life, so failure is not an option.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 19: Flow My Tears, the AI Said.
BB Dubai is the only hostile reaction in the Burj Khallifa and the heroes outnumber her, so they will not be defeated under normal circumstances. However, BB is concerned BB Dubai may do another simultaneous unsummoning. Xu Fu, XX Alter, Nikitich, and Tenochtitlan were captured by her once, so she will be familiar with the technicalities of their Spirit Origins. Bartholomew, Percival, and Karna were saved by Kazuradrop but if BB Dubai defeated her like they suspect and analyzed their records, then they’ll be promptly unsummoned. The only exceptions are Ciel, who came directly to Moon Dubai rather than rayshifting, Hakuno, Ritsuka and Mash, both of whom are human, Protea Alter, who is only her mind inhabiting a body created on Moon Dubai, and BB who can stay as long as she and BB Dubai are classified as the same being. BB says she can do some jamming to delay unsummoning for a few seconds.
Based on the aforementioned conditions, the heroes will divide into three groups. The first group will be Karna, Nikitich, Xu Fu, and Tenochtitlan while the second will be Percival, XX Alter, and Bartholomew. BB will be accompanying both groups. Both groups should take the twenty seconds it takes for BB Dubai to execute the unsummoning to damage her as much as possible. The third group will be Ritsuka, Mash, Ciel, and Hakuno.
Protea Alter thinks it would be easier for her to just punch out the Burj Khalifa’s observation deck to defeat BB Dubai rather than a long protracted fight. BB informs her though that the Burj Khalifa is over 900 meters, which exceeds her growth limit. Even if they had sufficient resources to grow her, her Spirit Origin wouldn’t hold up. Her actual role in the operation BB intends is to rescue the heroes in case they need to escape.
With five hours left before midnight, the heroes confront BB Dubai at the observation deck and battle her per BB’s plan. The first two groups whittle her down, disappearing after they do their part. The third group is then left to finish her off.
Lagrange Luxury.png|300px|thumb|The artificial moon Lagrange Luxury
Dimensional Gate Reactivated.png|300px|The dimensional gate beginng to reactivate.
However, BB Dubai puts up a barrier the energy of which according to BB exceeds all of Moon Dubai. BB Dubai reveals the energy for the barrier comes from an artificial moon built in Imaginary Number Space for the purpose of space exploration, LL———Lagrange Luxury. Hakuno realizes the moon they’ve been seeing in the sky dome was LL’s shadow in Imaginary Number Space. BB Dubai declares she will use LL’s power to reboot the city after she has terminated the citizenry.
LL’s sheer mass causes space to distort, creating what Ciel calls the spacetime version of a typhoon. Hakuno tells everyone to brace themselves and hold on lest they be blown out of the dome. BB is nearly blown out, but Ritsuka saves her. BB Dubai decides to revoke the midnight deadline now that she has unveiled LL.
As she watches the heroes struggle under LL’s mass, BB Dubai boasts no one in Moon Dubai can defeat her except maybe An-ki Ereshkigal who was never part of her plan. But then everyone sees the dimensional gate in Area I has begun to reactivate. Edison Alter accompanied by his remaining mechanized soldiers is using his own power to try and bring back online.
BB Dubai fires LL’s Mooncoil Railgun to destroy Area I, but Protea Alter blocks each shot fired to give Edison Alter the five minutes he needs to reactivate the dimensional gate. Passionlip had transferred her Spirit Origin to her earlier to ensure Ritsuka will be protected. BB Dubai is certain that both Protea Alter and the dimensional gate will be destroyed by the tenth shot.
Edison Alter is well aware Protea Alter cannot hold out for another five minutes just as he cannot discharge the current for another five minutes. He had returned to Area I in the event of an emergency but he didn’t have the strength or preparations on hand to reopen the dimensional gate.
Protea Alter is nearing her limit, so Edison Alter begrudgingly summons Nikola Tesla, the summoning of whom inexplicitly unaltered him. The two geniuses then work together to bring the gate back online.
LL Destroyed.png|LL destroyed by Space Ereshkigal's Epitaph
Burj Khalifa Observation Deck Destroyed.png|the observation deck destroyed in the same attack.
The moment the gate opens Space Ereshkigal emerges from the other side and she immediately destroys LL with Epitaph. She considers BB Dubai unfortunate that she and Ritsuka never abolished their contract. Her attack of course also destroyed the observation deck, but fortunately the heroes were not injured much to relief, especially for Ritsuka. She promises to explain the whole “space” thing later.
Space Ereshkigal's attack has left BB Dubai damaged, who has come to realize Ritsuka never actually defeated An-ki Ereshkigal. Even so she refuses to give up  certain she can survive until LL repairs itself. She even rejects Female Hakuno’s offer of assistance. She remains certain of her victory, so the heroes are left with no choice but to take down.
Meanwhile, Edison laughs at the fact Tesla disappeared after helping reactivate the dimensional gate but also disappointed he didn’t stay to see his work completed.
Feeling he is about to disappear as well, he tells Secretary Okabe (one of the mechanical soldiers) to relay his thanks to the other employees. Okabe is grateful to Edison, but they ask him if there was a safer way to support Ritsuka. Edison replies he knew Ereshkigal would come to Ritsuka’s aid as long as he connected their paths once more. No one could have expected a Spirit Origin formed out of the fusion of a goddess and a Beast though.
Curious, Edison then asks Okabe why the Machine Corps came to help him when they, like the rest of Moon Dubai’s citizens, fell into despair at BB Dubai’s declaration of the end, assuming it because they were enthralled by his greatnesses. Okabe tells him it was because they regained their purpose thanks to commuting with one AI and they decided helping him was the only way to save BB Dubai.
Edison is a bit confused they would want to save BB Dubai considering she said they would annihilate them all. But then he remembers at the time of her declaration none of the citizens showed any animosity toward her. He asks why that was.
Okabe answers it is because she is humanity’s friend and everything she did was with them in mind. But their foolishness forced her to take extreme measures. A second-gen like her attacking them would suicidal for her and they do not want to die in such a way.
A flashback show Last Slot did not understand why AIs serve humans when the former were superior. Still when she reawoken in 2600 AD as BB Dubai she worked hard to try to bring Moon Dubai out of its state of stagnation. She eventually met one of the few AIs who’d be considered her senior and asked him why she should bother making an effort. He almost immediately answered “it really isn’t that complicated”. BB Dubai saved his answer in her most important secret file so no one else can see it.
Gradually the third-gens stopped going outside, finding it more comfortable to sleep in their Boschs. By 2999 no one was walking the streets of Moon Dubai. That is when something strange happened to the Boschs, altering everyone inside it into something different. In a panic, BB Dubai cut the power and nearly lost her credentials as a management AI.
After some thought she chose to exercise her authority as the city management AI and chose to let the unaltered third-gens live as humans once again. It would give her time to develop a countermeasure so the strange alteration wouldn’t happen anymore and she would craft a definite destruction to avoid one so inexplicable.
In the present, BB Dubai still refuses to give up even after being defeated in battle claiming her denial of the Human Order is about her own self-preservation. BB refutes her saying she simply didn’t want this world’s humanity to be erased. She did everything she could to avoid the pruning of their doomed history for their own good and so the Human Order Assessment for this world was barely above the minimum value. BB calls BB Dubai a criminal who defied the absolute law of the Human Order for the sake of her own ego.
BB Dubai bursts into tears and asks BB what is wrong with that and what she would know about any of this. When she became BB, this world was already on the brink yet everyone was living carefree not bothering anyone. The Human Order abandoned this world on that day. The people of this world may have lost their creativity and productivity, but they are ideal human beings, yet they were pruned because there is no point.
BB Dubai accepts humans make mistakes all the time because they put in their everything in all that they do in spite of it. No AI can do that so she will not accept them being erased. As an AI, she found beauty in the daily lives of humans and their smiling faces and she had realized why AI kept on serving humans; a brief flashback reveals it was the waiter robot who gave her the answer she had sought. That is why she wanted to protect them and not want them to be forgotten. BB confesses she feels the same way.
Female Hakuno calls the heroes the “bad guys” for making BB Dubai cry. Hakuno tells her regardless of BB Dubai’s reasons she still stood against the Human Order, so she has no right to blame. The Archetype Inception wasn’t the answer and it wouldn’t solve the problem. Ciel assumes that means he has a solution, but he denies he does and says they can all come up with one together.
Exasperated that her other self is just like her in letting others take all the credit, Female Hakuno reveals there is still one more battle to be fought against the source of all of this. BB Dubai’s plan failed because everyone else won so now there is nothing left to finish off the human race. Now comes the long postponed downfall of the moon: the Moon Cancer———the Corrective Filter of the Human Order.
====Archetype Inception====
The moon’s Textures are suddenly reduced, SHEBA has ceased its observations and the humans (including the Hakunos) have begun losing their intelligence. Their loss of intelligence isn’t from any attack or interference rather they are adapting to their new environment and because the conversion through no discernible intervention there is no way to block it.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 20: Archetype Inception
In a desperate attempt to keep Ritsuka coherent, Space Ereshkigal asks them if they remember when they scolded her in the underworld. Ritsuka can barely remember in their current state, only knowing “that ring” is calling them.
Space Ereshkigal looks to see a giant ring above the moon. She tries attacking it with Zi Kilika, but the attack doesn’t connect. BB Dubai tells her to give up because that ring is just an image and cannot be touched by the material. That is why she couldn't defeat it. Once it appears, it is all over.
BB Dubai explains in 2800 when mankind couldn’t stop its decline, they predicted the Moon Cancer. It is the overflown stagnation of mankind’s collective unconscious. A conformative conscious humans cannot resist compelling them to want to remain the Prime Species forever. The wiser humanity becomes the stronger Moon Cancer becomes, becoming a hindrance to progress.
Ritsuka has now lost the capability for speech. BB Dubai apologizes believing this is all happening because she failed to defeat the heroes. She explains the Moon Cancer comes in multiple stages: the simplification of Textures, the lowering of intellect and cessation of thought for humans, and the conversion of all humans into MoonCancers. The conversion has already begun and currently 17% of Moon Dubai’s population has been converted. Once over half of the population are MoonCancers, they’ll be able to topple the Burj Khalifa so that the new Archetype, the new Prime Species they refuse to acknowledge, can’t be launched into space.
BB Dubai confirms the Archetype is in the Burj Khalifa, revealing it is a 0.8 millimeter metadata crystal. The Burj Khalifa was built to be the rocket that would launch into the cosmos once the Archetype awakened. However, if the citizens destroy the tower, the Archetype will perceive itself as being unwanted and self-terminate.
BB concludes they will have no chance of defending against the citizens if they all turn into MoonCancers and attack. They’re experiencing an Ordeal Call, a trial that mankind must overcome on its own. But the trial’s rules have completely derailed, for the Moon Cancer is occurring because mankind wanted it to. It is like an Evil of Humanity mankind has no interest in defeating, proving the Moon Cancer has too much power over humanity.
Ritsuka feels they’re becoming not themself when they suddenly regain their intelligence. BB Dubai questions how that is possible when she realizes the population of Moon Dubai who have gathered at the Burj Khalifa is protecting them. She is shocked the third-gens aren’t changing into MoonCancers but instead protecting the Burj Khalifa; Anthony is down there as well. Mash, Ciel, and the Hakunos have also regained their intelligence.
Surprised to hear Anthony is down there, BB Dubai plays back his activity logs. He had spent the whole time since leaving Old Dubai going around Moon Dubai confiding in his past and expressing his feelings to every person he could. Female Hakuno already knew this having been discreetly tracking Anthony on video because she was bored. Anthony had convinced the other third-gens to help the Archetype escape into the cosmos and thereby pass on mankind’s position as the Prime Species to it.
The third-gens perish one by one as they continue to protect the Burj Khalifa. BB with no other choice suggests to BB Dubai they fuse by transferring her Spirit Origin to her. BB Dubai is surprised the original would transfer her Spirit Origin to her, but BB admits she too is a duplicate of the BB from SE.RA.PH. She believes BB Dubai’s mindset has reached the same heights as the original BB so she has every right to the Spirit Origin she is giving up. She then purges herself causing her body to start to disappear.
Giving her farewells to Ritsuka, she tells them they are where they are today as a result of everything they did on Moon Dubai; It was just the MoonCancers, An-ki Ereshkigal, or her alone that brought reform to the people of Moon Dubai’s consciousness. She believes Chaldea has passed the Ordeal Call and without her needing to debug the inconsistencies with the Human Order. As part of Chaldea, she couldn’t be prouder.
She thanks Ritsuka for what they have done and tells them to stay the course and keep up their journey. She bids them farewell but reassures them they will meet each other again someday and disappears.
BB Dubai fuses with BB’s Spirit Origin and transforms into Golden BB. She then uses her newfound power to physically materialize the Moon Cancer, revealing a vague figure that is thousands of meters tall. Fortunately, Golden BB also uses her power to allow the heroes to reach it. The heroes, joined by Female Hakuno, then battle the Moon Cancer for the fate of the timeline.
After a long battle, the Moon Cancer is seemingly defeated and as a result the Textures are returning to normal. Ritsuka asks Space Ereshkigal for the story behind the “space” in her name. Although it’s not the most appropriate time to talk about that, Space Ereshkigal nonetheless agrees to provide an explanation.
She explains Ereshkigal and An-ki Ereshkigal reached an impasse during the latter’s battle with Ritsuka. The two of them should have disappeared but An-ki had agreed with Ereshkigal’s opinion that even if one day she loses her meaning and no dead arrive at her underworld, there is always a chance the living will come visit instead. An-ki wanted to see a view of Ritsuka’s universe instead of her own, so she opted to fuse with Ereshkigal.
Before An-ki was just controlling Ereshkigal’s body they were never one physically or mentally. After discussing it they properly fused together creating Space Ereshkigal a brand new Beast whose Spirit Origin is more attuned to Ritsuka’s universe. However, she couldn’t leave An-ki’s underworld, so she spent her time honing her skills until the dimensional gate opened. The moment she saw Ritsuka was in trouble they stepped right through the portal. As for why she appended “Space” to her name, she said it with such glee that there might be causation for it in the future.
Then all of a sudden Space Ereshkigal changes back into regular Ereshkigal. According to her, the transformation duration is quite short. Mash compares it to when Ciel became Star Ciel but Ciel disagrees saying hers was just a power boost while Ereshkigal’s was a bonafide transformation, switching between Servantverse and Chaldea. Ereshkigal says An-Ki said it was better this way because this way her completely restored Spirit Origin can safely return home to Chaldea.
Hakuno senses the spatial anchoring Golden BB implemented is coming undone. They’re presently 1800 meters above the moon so if they fall they’re dead. None of the heroes can fly so they haul it to the observation deck. But that is when Ritsuka is suddenly transported somewhere else.
In an instant they understood they were inside the lunar halo. A myriad of voices flows through the space in the form of white light entangling Ritsuka preventing them from moving forward or turning back. Ritsuka already knows this is the Moon Cancer as they feel themselves being assimilated.
The Moon Cancer is adamant no human could ever exhaust their entire self to let an unknown competitor forge ahead, but Ritsuka refutes it knowing people who could. They recount how Koyanskaya whispered to them that Kirschtaria’s plan to deify humanity to save them didn’t include himself, which had accepted. The Moon Cancer argues that was a onetime error, but Ritsuka knows there were, still are, and will always be people like that. They remember Romani Archaman’s sacrifice at the Time Temple and tell the Moon Cancer those people had fulfilled the responsibilities they were entrusted with him. They know those who have bid farewell complete in their duties and that is why their voice can no longer be heard.
Ritsuka sees a moon in the distance and convinces themselves it is the exit. All they need to do is move forward, but they lose the confidence to do so when the Moon Cancer disavows their actions. They oppose the Moon Cancer but they lack the strength to call themselves righteous. Righteousness alone will not do and it is too sinful to trample on this humanity’s history with a single person’s ideas. The Moon Cancer asserts Ritsuka does not have the right and is certain they will never move forward.
However, someone disagrees, asserting Ritsuka isn’t weak as the Moon Cancer says and knows they have the strength to move forward. Ritsuka recognizes this person’s voice and the feel of their hand pushing on their back. The person reveals Ritsuka had become a MoonCancer and they are their summoned Servant either done by their unconscious will or those close to them.
Ritsuka tries to turn and see who it is, but the person tells them to keep their eyes on the prize. This is the first time Ritsuka has summoned them, and while it’s possible they’ve met before, that was a different them. They know nothing about Ritsuka, but they do know they’re someone capable of overcoming the Moon Cancer. They do not need confidence or righteousness, only the will to move forward, which is the sad means by which mankind accumulates its sins.
Reinvigorated Ritsuka prepares to move forward toward the moon, but first they look back to see the person who encouraged them was Da Vinci. The Moon Cancer attempts to dissuade Ritsuka from allowing a being greater than humans and bears no resemblance to them to succeed them as the Prime Species. Ritsuka is not dissuaded and they reach their destination, freeing them from the Moon Cancer. The lunar halo is shattered and the Archetype is awakened.
Ritsuka finds themselves freefalling with seemingly no Servants nearby to help them. From the others’ point of view, Ritsuka had suddenly vanished. They search but are unaware Ritsuka had suddenly appeared in the sky above. The soonest they might respond is at least another two minutes and Ritsuka will have fallen to their death in half that time.
Fortunately, they’re caught just in by Protea Alter. She reassures them everyone else is fine who should be at the base of the Burj Khalifa by now. She suspects they saw her catch Ritsuka and are breathing a sigh of relief.
Relieved, Ritsuka asks Protea Alter if she can carry them there. Protea Alter tells them to just walk as she refuses to move anymore. Ritsuka notices her wounds from when she was protecting Area I from LL’s railgun fire. Protea Alter tries to play it tough but soon admits she can’t move anymore and implores Ritsuka to get moving. She disappears afterward.
====Wonderer====
Ritsuka reunites with the others at the Fountain plaza, surprised to see regular BB. She says BB Dubai is still around and the two of them can switch out if need be. Ritsuka asks where Female Hakuno is. Hakuno says she went back to the observation deck saying she was exhausted.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 21: Wonderer
Mash reveals according to BB the defeat of the Moon Cancer will restore Moon Dubai’s Human Order Foundation Value as well as increase Chaldea’s own Foundation Value. The restoration of Moon Dubai’s Human Order Foundation Value means it is no longer subject to pruning. The fact the Moon Cancer was repelled is significant, but not as much as Moon Dubai’s citizenry accepting the Prime Species succession as well as their gradual decline.
BB calculates the people of Moon Dubai will last for another 3000 years under her management. Mash tells BB she is coming back to Chaldea with them and asks who will remain on Moon Dubai. BB answers BB Dubai will remain, but Moon Dubai no longer has the resources to reconstruct her body, so she’ll remain as a frameless AI in her Last Slot state.
Ritsuka asks if they’ll be seeing the people of Moon Dubai. Ciel says most of the third-gens exhausted themselves while resisting the Moon Cancer’s transformation of the Texture. She supposes it’s possible the Boschs are now consolidating their data for proper reemergence, though. BB says one citizen in particular wanted to give his thanks to Ritsuka and Mash, but he knows there isn't much power to spare for the Boschs, so a simple message of thanks was all he wanted passed on.
Ereshkigal notices she is being unsummoned lamenting she still hasn’t explored Moon Dubai. BB deduces BB Dubai’s forced unsummoning is affecting Ereshkigal now that she is a Spirit Origin from Chaldea. She reassures Ereshkigal her destination is Chaldea but she’ll have to accept there will be no Dubai sightseeing. Ereshkigal disappears, grateful to Ritsuka for the summer experience as well as apologizing for destroying some of the Boschs.
Ciel disappears soon afterward, assuring Ritsuka that now they have formed a connection she’ll be there if they’re ever in trouble.
Mash laments how Percival, Karna, Bartholomew, Nikitich, Tenochtitlan, Xu Fu, and Ereshkigal have all safely gone back to Chaldea except for Passionlip who sacrificed herself to shield the others from the Moon Cell’s observational light. BB however informs Ritsuka and Mash that she found when she fused with BB Dubai that Passionlip wasn’t actually terminated. The Moon Cell’s observational light only pretended to kill her and she was unsummoned back to Chaldea. Ritsuka and Mash to know everyone who came to Dubai gets to return home to Chaldea.
BB tells the pair it is too soon for celebration, pointing out they’ve yet to show signs of returning to Chaldea themselves. Hakuno reveals the Human Order Foundation still hasn’t been restored because there's still a Mooncancer interested in preventing the Prime Species succession-----him. He has the others follow him to the Burj Khalifa for the final battle to decide the fate of Moon Dubai in the place where it all began.
Inside the elevator, Ritsuka accuses Hakuno of knowing the cause of this Apra World’s downfall. Hakuno says it was an educated guess as his world too had the problem of Prime Species succession after immortality was achieved. He could already see the outcome when he heard the Human Order Foundation level was abnormal, but what they learned at the museum about the development of the Archetype made the big picture clear.
The humanity of this world had rebelled against the Prime Species succession. If they had died out without the Archetype ever appearing, they wouldn’t get pruned, but the fact they rebelled with an Archetype was a cardinal sin the Human Order would never ignore. Hakuno admits he honestly had been thinking it was too late, but he guesses the people of Moon Dubai made it out unscathed showing there is no telling what people can do when they put their backs to it.
Ritsuka asks Hakuno what exactly happened in his world. Hakuno answers that fortunately his world’s Archetype was born spontaneously and quickly reached an understanding with humanity. They were preparing to launch the Archetype into space in 3000 AD. The day before was when their role had finally come to an end and the morning of, Hakuno was summoned to Moon Dubai. Mash asks him if by role he means as humans or rather as Prime Species but Hakuno doesn’t clarify.
He thought his summoning to Moon Dubai had freed him from the series of desk jobs his life had become, but the moment he thought that Female Hakuno appeared out of nowhere. It has been quite the challenge, but he also thought to himself this could be a miracle. Here he doesn’t have to be mature about the conclusion of his duties; It's a chance to finally do something. He and Female Hakuno have unfinished business, so they’re using Ritsuka.
The elevator arrives at its destination. Hakuno declares it is time for their graduation from humanity that they have put off for so long.
The elevator doors open to a recreation of Tsukumihara Academy BB had made presumably at Hakuno’s request. Female Hakuno has been there waiting for the heroes to arrive. Ritsuka, Mash, and Hakuno sit down and eat snacks with her.
The Hakunos declare themselves to be Ritsuka’s last opponent, wanting to fight as Masters. They reveal Moon Dubai was an exception to the rule that Servants summoned by the land are on the side of the Human Order as this world was under the Human Order’s protection. They were summoned to protect the wish to reject the Archetype, which makes them Ritsuka and Mash’s enemy. As long as they're still here, the Foundation value won't be restored, so in order for Ritsuka and Mash to return to Chaldea they must defeat the Hakunos. They don’t have to kill them, only defeat them and that should be enough for the Human Order to acknowledge their victory.
Ritsuka accepts but they want to know why the Hakunos want to fight them. Hakuno answers they want to test them as veteran Masters and as their senpai they want to send them. Female Hakuno adds this was the first time they were able to work together with a junior Master, so they wanted to act senpai-like as much as possible.
To further incentivize Ritsuka, the Hakunos request BB make a Holy Grail for both of them to serve as a trophy to reward the winner. BB agrees to make two Grails, though she’d rather not be treated like an errand girl. Ritsuka and Mash then duel the Hakunos.
Ritsuka and Mash eventually emerge victorious and the Hakunos thank them for giving them a battle without regrets. Mash assumes they will be unsummoned back to their original world, but BB reveals the truth. The Hakunos are a rare case of being summoned as a split of male and female possibilities during a Rayshift and after coming to the world of Moon Dubai they’ll be rejected by their original world as something foreign, meaning they cannot return to their original world.
BB finds there is nothing to be sad about as the Hakunos have fulfilled their obligations. Their world is one where humanity has graduated from its role, making one of the few Compiled Events that reached the finish line. It's a world where there's no further need for Masters, so Hakuno can disappear with peace of mind.
Female Hakuno reveals her/Hakuno’s world wasn't easy on AI as Moon Dubai and they even had their own Corrective Filter of the Human Order: Amnesia Syndrome. Their world was closer to Ritsuka’s where AI is likely to have a rocky road of development. In Hakuno’s world, abuse of AI caused cultural decline due to AI being used to not just endlessly replicated cultures but personalities as well. Nations collapsed for that same reason and it became impossible to maintain social order. Hakuno was the first replicated human.
Fortunately, Hakuno’s world was able to settle down by the year 3000, so Hakunos are finally able to rest with their duties complete. That is why they’re content with dying here, not that they have any other choice. Their operational limits were down to two hours in their original world and the natural end of their lifespans is “now”. It has only been on hold due to Moon Dubai summoning them.
Ritsuka realizes BB knew what the Hakunos’ fate would be, but even in a time like this she still puts on her smug smile. They head back to the bottom floor with Mash, telling the Hakunos they hope to meet again.
With Ritsuka and Mash gone, BB finally lets loose the tears she had been holding back this entire time, wanting to show the Hakunos how perfect a management AI she could be. The Hakunos both commend her, so BB asks them if she conducted herself the same as the BB they remember. They tell her she is, and while she is gone from their world, they see her as the same BB she was on the big day. That is why they were glad to meet her here, glad to see she is still a good partner to humanity and that makes her their greatest contribution to humanity.
They did not come here to say goodbye but rather to see their precious kouhai off. Even if they lose the seat of the Prime Species, it doesn't mean an end to human history for the future has so much more in store. They want BB to be part of that future even if it means beyond the planet. Now they want to see her stand tall with a smile, saying that is how graduation ceremonies go.
BB tearfully smiles, remarking graduation must be wonderful when it’s something the Hakunos have always longed for. The Hakunos disappear; BB says they can leave the future of humanity in her capable hands, promising to provide the best care and support in the universe. She calls herself a special circumstance born from the goodness innate to the Master of the Moon and it's her job is to watch over the health and development of humanity. She vows to the Hakunos, her saviors, that she will use her life and love for the benefit of humanity.
At the fountain plaza, Ritsuka finds the sunhat they gave Ereshkigal before, intending to bring back as a souvenir. They and Mash wonder if BB was able to properly say farewell to the Hakunos, though. Golden BB thinks there is no need for such thoughtfulness, saying she couldn’t have made a better memorial for the Hakunos. Besides, she thinks Ritsuka and Mash are in more need of consideration since they can't return to Chaldea without her help.
She then activates Golden Rayshift to send Ritsuka and Mash back. She informs them that even though the world of Moon Dubai is a parallel world, it is still far into the future, so they can’t bring their memories of it into the present. Once the Golden Rayshift is done, they will be sent back to the beginning of summer.
But she reassures them all the experiences they’ve gained are engraved into their Spirit Origin, so nothing has truly been lost. However, the human race can only develop as long as they live in the present, meaning Ritsuka and Mash must forget their memories of the future. When they once again reach this time, they will immediately recall their lunar adventure.
==== Epilogue ====
Ritsuka wakes up in their room at Chaldea. Mash enters and informs them that Goredolf will brief them in an hour on how they’ll be spending their summer break. She suggests they get some breakfast before then. Ritsuka has a sense of déjà vu about a summer vacation briefing.Fate/Grand Order: Cosmos in the Lostbelt - Succession Battle for the New Prime Species, Archetype Inception - Section 2: Epilogue
At the cafeteria, Nikitich, Xu Fu, Percival, Bartholomew, Karna, Tenochtitlan, XX Alter, and Ciel discuss where to go for the summer. Mash asks Ritsuka if they would like to join in on the discussion. Ritsuka says only after they have breakfast, noticing a couple new faces.
A voice from behind Mash politely asks her to move aside, worried they might snag her by mistake if they pass by. Mash apologizes for standing in the way and tells Passionlip to go on through. Passionlip apologizes for always being a bother and promises she’ll be out of the way before long when she notices Ritsuka has been staring at her. She asks them if there is something strange about her today. Ritsuka tells her she isn’t a bother to anybody.
Passionlip is aware Ritsuka will be going to a meeting about summer vacation. She heard from Melt that they’re given days off during this time of year and the Servants chosen to escort them get to rayshift with them as well. She asks them to share stories of their vacation when they have the time. Ritsuka sees no point in that, though, and asks Passionlip to be their bodyguard. Passionlip thought it would be disrespectful to ask but she’d be happy to be their bodyguard.
Meanwhile, outside the cafeteria, An-ki asks Ereshkigal if she is not going to talk to Ritsuka, considering she lost her first chance. Even if they were reset to day one, it is still day one of summer as before. If she takes RItsuka away right now, she might be able to make it a summer for just the two of them. Ereshkigal declines, accepting what happened was a one time miracle. Besides, it wasn’t a summer for just her and Ritsuka but for everyone.
She and An-ki are the only ones who remember Moon Dubai and who know of that future. If they don't interfere, Ritsuka and the others will arrive in that city. Even if they can't go back to Moon Dubai again, there is still the Dubai of 2030 BB has prepared. Ereshkigal is sure the adventure won’t be too different, so she only needs to watch it unfold. She also doesn’t cause another crisis as a Beast. An-ki promises to keep herself in promise, although she doubts she and Ereshkigal are only the ones who remember. Confused, Ereshkigal tries to ask her what she means when Mash comes up to her.
Mash informs her Ritsuka has something for her. They had been restless since waking up this morning, but once the meeting finished, they grabbed a straw hat from their room and ran out, saying they were going to see her. Ereshkigal is moved to tears much to Mash’s concern, but she reassures her not to worry. Mash assumes Ritsuka is looking for Ereshkigal to include her with the Servants who will rayshift with them, even directly appealing to Goredolf to definitely include her. Ereshkigal claims as the mistress of the underworld she isn’t interested in summer, but she goes into the cafeteria happy Ritsuka had remembered.
Meanwhile, at Moon Dubai, Andersen runs out of the Dubai Frame, excitedly announcing his story about Moon Dubai. A lone citizen reads it and praises it but is disappointed by the ending since the real world ending was far more spectacular. Andersen is surprised and asks where Chaldea went. The citizen tells him they left but questions why he, an Chaldean Servant, wasn’t unsummoned.
Andersen, mentioning he was involuntarily summoned, realizes Kiara allocated magical energy to him so he’d remain in Moon Dubai. The citizen asks if there is anything he can do to help. Andersen says he can start by rating the book. The citizen gives it 3-stars; Andersen tells him to delete the book and leaves, unaware 3-stars is actually the highest rating on Moon Dubai. Ashamed, he decides to end it all, feeling that is the only way he can return to Chaldea.
He goes to the ruined observation deck of the Burj Khalifa and gets ready to jump off when he senses someone else.
Kazuradrop bursts from the rubble, having just finished regenerating herself. It frustrates her that she made a Grail using Moon Dubai’s resources to present to Chaldea, only for them to forget all about her and leave. She refuses to let this be the end, though, as she hasn't had enough contact with Ritsuska to reach Chaldea on her own. She swears to think of something to definitely pay them back for this disgrace.
She then finally notices Andersen, who had been staring at her dumbstruck. She is so surprised that screams, asking who he is supposed to be. Andersen, concluding life is full of opportunity, tells Kazuradrop he might have a spare ticket to Chaldea she could use.
==Participants==
Servants
Designation	Identity 	Affiliation
Beast 	Space Ereshkigal 	
Lancer 	 	
Avenger 	 	
Lancer 	 	
Rider 	 	
Lancer 	 	
MoonCancer 	 	
Alter Ego 	Passionlip 	
Ruler 	 	
Lancer 	 	
Rider 	 	
MoonCancer 	Kazuradrop 	BB Dubai
MoonCancer 	BB Dubai 	
Berserker 	Amazoness CEO 	
MoonCancer 	Ciel 	
Foreigner 	Mysterious Heroine XX Alter	
Archer 	 	
Foreigner 	 	
Assassin 	 	
Archer 	 	
Berserker 	 	
Ruler 	 	
MoonCancer 	(Alter) 	
Alter Ego 	Kingprotea 	
Saber 	 	
MoonCancer 	 	
MoonCancer 	 	
MoonCancer 	Koyanskaya of Darkness 	
MoonCancer 	BB Cosmos 	
MoonCancer 	Hakuno Kishinami (Male) 	
MoonCancer 	Hakuno Kishinami (Female) 	BB Dubai
Alter Ego 	Kingprotea Alter 	
MoonCancer 	Kiara Sessyoin 	
Non-Servants
Designation 	Identity 	Affiliation
AI 	Hasara 	
AI 	Anthony 	
Corrupted Alaya	Moon Cancer	
==References==
Category:Locations in Fate/Grand Order
Category:Ordeal Call
Category:Cities on the Moon