Daiki Tsukasa

* Daiki Tsukasa
* Kamen Rider Decade
* Kamen Rider Dark Decade

Daiki Kazaki Hiyazenbana/Daiki Hiyazenbana (His royal origin name)

Shounen Decade (Nicknamed by Yusuke Onodera and Daiki Kaito)

Captain of 12th Company of Knights of Favonius

Lisa Minci (Boss)

Aether Minci (Superior)

Xiao (Friend)

Zenith Novem (Friend)

Stish (Friend)

Kayla Katyusha (Friend)

Ripper Katyusha (Friend)

Jean Gunnhildr

Diluc Ragnvindr

Teyvatian (Original Universe)

Mondstadtian

Knights of Favonius

Mondstadt Forces

**Daiki Tsukasa** or also known as **Kamen Rider Decade** and **Kamen Rider Dark Decade** is one of the character from Genshin Impact Roleplay (The Another Story), he is one of the Outsider who become the supporting character in this roleplay story, his origin is from **Rider World** or **Kamen Rider Universe**. He is the alternate variant of **Tsukasa Kadoya**, the original Kamen Rider Decade. He appears with his white belt driver or his black belt driver or with the Decade form and Dark Decade form.

## Appearances & Personality

Daiki has appearance like black hair, slim body builds, and wears a white shirt with black shirt inside it. His Rider Form, Decade Form has appearances like magenta, white, and black colored Rider Armor with green visor and yellow signal pointer, in this form, he using **Decadriver** for his Driver belt, which has a white color, and in his true power form or Dark Decade Form, it has appearances black, gray, and yellow colored Rider Armor with dark blue visor and black signal pointer, and in this form, he using **Dark Decadriver** for his Driver Belt, which has a black color, and also he bring stuff in his right belt called **Ride Booker**, and he use this Ride Booker to store his cards and he can use his Ride Booker to be a weapon in Sword Mode and Gun Mode. But unlike the original Decade, Daiki Tsukasa's Decade can't transform into another Legend Rider Form, but he can still access the power, and he can also using other fictional character's power, if he has a card from a fictional character that is concerned.

Daiki has a cheerful and honest character, cares for others, uphold justice, and he can also be said to be hyperactive since he loves outdoor activity. He is also known to be very diligent and agile in getting things done, he also likes any challenges that he thinks are new to him. He is also known to be talented in doing anything even though he is not as good as his master, Tsukasa Kadoya.

## Story

### Early Life

#### Prologue

Daiki Tsukasa was born into a royal family and a military family, he born with name **Daiki Kazaki**, and with royal name, **Daiki Hiyazenbana** or **Daiki Kazaki Hiyazenbana**. In his world, he is the 3rd descendant of the 25th Emperor of Japan who served from 1960-2010. His father, named **Nobuhiko Kazaki** or **Nobuhiko Hiyazenbana** in his royal name, was the second son of the 25th Emperor of Japan named **Nayouki Hiyazenbana** or **Emperor Naoyuki**. His uncle, **Naozaki Mitsuhiko** or **Naozaki Hiyazenbana** in his royal name, is the current Emperor of Japan or the 26th Emperor of Japan and is the first child of Naoyuki Hiyazenbana. His father is also a retired Japanese Army Commander who currently serves as Prime Minister of Japan.

Little Daiki has been taught hard militarily by his father, his father wants Daiki to become an army just like he was before and severely limits Daiki's freedom when doing anything. Different from his father, his mother **Sakura Kazaki**, taught Daiki more gently and freely which is inversely proportional to his father's upbringing, this makes Daiki more like his mother than his father, even so Daiki still respects and loves his father as much as he respects and loves his mother, because He considers that the two upbringings are balanced upbringing and will be of great benefit to his future.

When he grew up, Daiki became a very liberal person and he also became an adventurer, he often traveled back and forth around the world and looked for challenges that he thought were interesting, and this of course made his father annoyed because Daiki ended up being someone he considered too liberal. Because of this, his father was immediately very angry with him and considered Daiki as a failure, his father insisted that he immediately enter the military academy but Daiki refused, his father continued to force him even to the point of threatening him if he still refused his father's orders to enter the military, and Daiki who can't stand it anymore and finally invites a duel with his father, if the father wins, then he will follow all his orders, and if he wins, then the father must let Daiki do and determine whatever he wants, and his father agreed to this. In short, finally, a duel was held where they performed a Karate duel in a large hall near the palace, and this duel was being watched by many people even by the Emperor himself. The duel begins and here Daiki is very overwhelmed in facing his father, his father continues to beat him hard without giving him a chance to attack him back, and in just 45 seconds, Daiki immediately falls. Not long after, Daiki felt an aura of strange power within him that immediately made him fit in again, he finally asked for a rematch duel with his father and his father agreed to this. The duel started again and again the father continued to dominate the fight by beating Daiki all out, but Daiki still persisted until 6 minutes later, the audience there started to get excited about it where Daiki was starting to feel pain and asked to surrender to his father, but his father did not care about it where his father wanted Daiki to fully knocked out as a lesson so that he would not fight his father again. Daiki kept shouting asking his father to stop and asking the people there to stop his father. The people there began to panic and asked his father to stop the fight, some of them even tried to enter the duel arena to break them up but were restrained by his father's aides. Unable to take it anymore, Daiki began to scream loudly, and unexpectedly, Daiki with the power of a strange power aura within him, instantly knocked his father out with the power of telekinesis which also instantly knocked his father unconscious. The people and the Emperor who was there watching the match start to be shocked seeing this, as were the aides of the father. Feeling guilty and scared, Daiki finally decided to go and run away from there, where his father's men tried to chase him, but they were stopped by the Emperor to stop chasing Daiki.

#### First Meeting with Tsukasa Kadoya and Becoming Kamen Rider

Daiki, who was still afraid of what had happened, started to run far away from the palace without a direction which after 3 hours of non-stop running, he arrived near a mountain where he decided to rest there. While he was resting, he was also visited by a mysterious man who claimed that he could change Daiki's fate by honing Daiki's superpowers. The mysterious man also invited Daiki to come with him, and Daiki agreed to this, then the mysterious man began to open a dimensional curtain which is a portal and they finally entered the curtain. After entering the curtain, they were immediately in a large mansion which turned out to be the residence of the mysterious man. The mysterious man introduced himself as Tsukasa Kadoya, and he was not alone, he was with two other friends who also lived there, they were Daiki Kaito and Yusuke Onodera. Tsukasa explains, if he feels a tremendous power within Daiki, he says that with that power, he has the potential to become a Kamen Rider. Daiki, who is confused about what Kamen Rider is, begins to ask Tsukasa about what power he has so that he can perform telekinesis attacks and what Kamen Rider is. Tsukasa also explained what Kamen Rider is and he also explained that the power that Daiki has, is a base power of a Kamen Rider, which the power has a link with the power of the same Kamen Rider as himself, namely Kamen Rider Decade. For that, Tsukasa finally gave his old Decadriver to be used by Daiki to test whether he could transform into Kamen Rider Decade or not because only people who have interdimensional power resonate with the base power of Kamen Rider, especially the base power of Kamen Rider Decade, which can transform into Kamen Rider Decade, which Tsukasa himself felt that Daiki already had a base power from Kamen Rider Decade. Daiki finally tries to transform into Kamen Rider Decade and finally, Tsukasa's prediction is correct, if Daiki can transform into Kamen Rider Decade with the power that is within him. But not long after, Daiki began to lose control of his power that had resonated with the power of Kamen Rider Decade, Daiki can't control his Rider Form power, which eventually made Tsukasa quickly release the Decadriver on Daiki's waist, and Daiki suddenly detransformed into his human form again. Tsukasa finally decides to train Daiki's potential power so that he can control his power directly or when he is in his Rider Form, and also to unlock his true power which according to Tsukasa, that his power is still locked inside of Daiki.

### Pre-Genshin Impact Story

#### Lost in Genshin Universe

After using the full potential power of Dark Decade to defeat Corrupted Decade, Daiki was suddenly thrown into an unknown dimension that the world inside it also was very different from his original world before. The world state in that unknown dimension universe is in its chaos when destruction happens throughout that world, that world is on the verge of destruction due to the actions of several groups of gods who call themselves the Celestians or Celestia gods, along with their leader who is referred to as "The Unknown God". Daiki who at that time also directly saw how the 2 twins who were trying to fight the leader of these Celestians or The Unknown God, had to die as a result of the blitz attack from Unknown God. Daiki, who at that time couldn't control his emotions again, started screaming so loudly that it caught their attention and started turning back into Kamen Rider Dark Decade and immediately attacked and slaughtered the Celestia gods. Finally, Daiki in his Dark Decade form began to face off against Unknown God, and at that time Unknown God immediately attacked Dark Decade with his destruction cube ability. Daiki, who was no longer able to control himself, immediately started to counterattack the Unknown God very brutally and finished him off with his Dark Dimension Kick. After the fight, Daiki began to regain consciousness where he only saw the destruction and death that enveloped the situation in the world, and Daiki who finally saw these all started crying and screaming very loudly for the second time, which inadvertently happened and this also makes Daiki released a shockwave that instantly erases the reality of that world and that universe. Simultaneously, Daiki was finally thrown back into an unknown place where at that time he was already surrounded by all Genshin Impact characters from 9 different universes, where it turned out that he had unknowingly and unintentionally created a reality where he was already surrounded by all the Genshin Impact characters from 9 different universes whose their goal is to kill and destroy Daiki. They finally simultaneously began to attack Daiki and Daiki who was still in his Dark Decade form, with his unknown power, he also managed to create a shockwave again which immediately wipes all of their existence together with the 9 realities of their respective worlds in their own universes.

After that incident, Daiki was suddenly thrown into an unknown dimension again which finally left him unconscious for more than 3 months. After 3 months later, Daiki began to wake up and he found himself on the beach in a world that he did not recognize again, but he still has some memory about the world scene because of his experience in the unknown universe that he has been there before and has the same world background as in the current universe, but the difference between the world in the unknown universe before is on its destruction scene not on the normal scene like on the current universe right now, and its turns out if he's still on same dimension universe that called as Genshinverse, and just get thrown into another universe that still inside of Genshinverse. He then began to explore the beach and at that moment he was suddenly blocked by 3 large slimes that were shaped like water slimes. The slime started spitting water shots toward Daiki immediately making it bounce towards the beach water and when the slime was about to hit Daiki, Daiki accidentally issued a blow of wind which immediately made the slime bounce and died instantly. Daiki who is still confused about what happened immediately ran away from there to a small forest, where when he got there he again tried to use his Aurora Curtain to return to his original world, but many times he tried to teleport back to his original world, he always failed and just always teleported from one place to another place on that world. This incident also frustrated him and finally he had to start changing back into Kamen Rider Dark Decade to try to use the Aurora Curtain with the power of Dark Decade to return to his original world, but still, it failed which ended up making Daiki, in his Dark Decade form, lost control of himself again. The next morning, Daiki start to regain his consciousness again, and when he woke up, he found himself suddenly in a very large bedroom, and few minutes after he woke up, he was approached by a blond-haired boy who then the boy looked at him from a very close distance before finally the child ran out of the room and came back with a woman in a purple dress who is the mother of the boy, with her 3 maids. The woman start approaching Daiki and began to say that she had found Daiki unconscious in a forest in the Whispering Woods area while she was walking in the afternoon with her guards and some of her aides. The woman began to introduce herself to Daiki and explained who she was, the woman's name is Lisa and she was the Supreme Leader of a nation that Daiki currently resided in, named Mondstadt, and she also introduced her child to Daiki whose name was Aether. Lisa began to ask Daiki about where he came from, and Daiki replied that he was not from this world and that he was currently lost in this world and could not return to his original world. Even Lisa, who had known from the start that Daiki was also an outsider, only smiled after listening to Daiki's explanation. Without asking much else, Lisa started to say to Daiki that he was allowed to live temporarily with them, and she also offered Daiki a job as one of her aides, while also saying that she would start taking care of Daiki's residency status so that he became a resident of this world and universe called Genshin World and Universe and also became part of the Citizens of Mondstadt. Daiki who was confused began to ask Lisa again, why did she have to do this to him even though they had just known each other, and Lisa just responded by laughing casually saying that after Daiki was trapped in their world, very little the possibility or even almost impossible to he can return to his original world, she also said that after all, she already knew about the personality of Daiki which was clear from his personal aura that Daiki was a good person, loyal, and had a high responsibility.

### Becoming a Honorary Knight of Knights of Favonius and Captain of the 12th Company

3 weeks later, Daiki was assigned to take Aether to Liyue, and on his way home, he found a man who was a member of the Mondstadt troops who was being ganged up by about 35 wild Hilichurls who also were known to be a member of the Knights of Favonius and also one of the Anemo element Vision users. Daiki immediately approached the incident scene, which then Daiki swiftly attacked the leader of the Hilichurls and then swiftly took the man's sword and began to fight the Hilichurls. Due to the disproportionate number of Daiki and the Hilichurls, Daiki began to get overwhelmed and cornered and one of the Hilichurls who was a Mitachurl started kicking Daiki and took the sword and broke it. Daiki who was on the verge of danger inadvertently managed to paralyze the Mitachurl by pushing him and bouncing him with the wind power that was on him. Daiki, who realized that he had awakened his elemental power, finally tried to create a large vortex that finally managed to clear the wild Hilichurls from the area. Daiki also finally swiftly began to help carry the man and drove him back to the city. On the next day, Daiki was personally called by Lisa in her room at the government office, and when she got there, Lisa who was with Jean immediately gave her a sword and Vision which she then explained that she had seen an incident when Daiki helped a man who turned out to be was an officer of the Knights of Favonius and defeated 35 Hilichurls alone. Jean finally also gave him a battle suit and robe from the Knights of Favonius and started to raise Daiki to be a member of the Honorary Knight of Knights of Favonius since then, at the same time the Vision that Lisa gave him began to light up, and show the Anemo element. Lisa also started giving Daiki a house to live in, in the area of Mondstadt Outsider Town.

6 months later, Daiki, who had been appointed an officer of the Knights of Favonius because of his achievements and dedication as a member of the Honorary Knight of Knights of Favonius, was promoted by Lisa to become the Captain of the 12th Company. Jean, who agreed with Lisa's promotion, began to make Daiki the Captain of the 12th Company, and Daiki finally started his first assignment as Captain of the 12th Company, by leading his company members to raid a worldwide class terrorist base in a city in the north of Mondstadt. After successfully destroying the worldwide class terrorists, news about Daiki became popular not only in Mondstadt but also in all nations in Teyvat and even in several nations outside Teyvat. His identity as an outsider who became Genshinverse Inhabitants also became a propaganda tool for the Teyvat Union and several other nations outside of Teyvat to serve as an example to other outsiders. Instantly Daiki also became an idol for people because of his inspiring and heroic story.

Daiki also begins to have many friends in his story in this world, he also gets to know Kayla who is one of the friends of his boss, Lisa, then he also meets Crimson and also Aether Kun who is Aether from another universe. At first, when Daiki met Aether Kun, they saw each other as enemies due to a misunderstanding when they first met, were at that time Daiki absorbed the remnants of Hideki's soul existence aura who had died at that time, and use it to test his Card Conversion ability to make Hideki Rider Cards, and Aether Kun sees and thinks Daiki took the entire existence of Hideki to be turned as cards. Because of that, the clash happened between them where at that time Daiki who did not want to use his Dark Decade power to fight Aether Kun began to get overwhelmed and choose to use smoke bomb and run away from there, where at that time Aether Kun continued to try to after him although, in the end, he couldn't find Daiki again. A few weeks later they met again at Kayla's house at that time Aether Kun who knew that Daiki was there immediately attacked Daiki but he was stopped by Kayla, where Aether Kun protested and told her that actually her late husband had been turned into a card by Daiki and he was there to snatch the card from Daiki. Kayla, who heard this, just smiled and laughed, which coincided with the appearance of Hideki in front of them, which surprised Aether Kun. Kayla also explained that 3 days ago she had revived Hideki and Daiki also explained that his purpose to absorb the remnants of Hideki's soul existence aura is to save the remnants of Hideki's power and his full existence which can later be transferred back into Hideki's body which then shortly afterward, Daiki also uses his Hideki Rider Card to restore Hideki's power back and his full existence. After that Daiki and Aether Kun finally started to become buddies even though there were still conflicts between them, before finally they became enemies again because of several things and conflicts that continued to occur between them which had to break their friendship.