Tessio Petrocchi

* Mask
* No Mask

Unnamed aunt (alive)

Unnamed father & mother (deceased)

Kira Sunako [close friend, roomate] (alive)

Riko Kasumi [late-realized crush, boyfriend during despair] (deceased)

Audette Drosselmeyer [friend] (deceased)

Ayaki Aino [friend] (deceased)

*"Just in case anyone is wondering, I am Tessio Petrocchi, and I have chosen to reveal my true form during this venture. Please do not be alarmed, this is simply a grief response. While people in mourning usually add on more clothes, such as veils, I, apparently, strip."*

— Revealing his face publicly for the first in chapter three.

**Tessio Petrocchi (テシオ・ペトロッキ)** is the antagonist of Danganronpa: Sister Location and a participant of the Secondary Ultimate Despair Killing Game. The killing game is not tied to a real Danganronpa game, however, it is featured on Quotev (@destinationdespair) and therefore, hosted online. His title is the Ultimate Experimenter.

 History

### Fabricated Pasts

Tessio told Kira that his mother died when he was young, leaving him and his younger sister in the care of his abusive father. His father conducted a number of cruel experiments on both siblings, leaving his sister semi-paralyzed and Tessio with severe, methodical scarring all over his body. This was his rationale for cutting off Miyo's fingers, toes, and ears; he wanted to be able to conduct experiments on nerve endings to see if he could find a way to cure his sister. All of this is revealed to be a lie in chapter five when he reveals his true backstory to Chisafusa.

Additionally, Tessio claims frequently that he has had a fiance since he was four-years-old and that they are very happy together. This is implied, but not entirely confirmed, to be untrue, considering he refuses to go into anymore detail about his fiance and almost appears to worship him in an idyllic way.

### Early Life

Tessio is a second generation Italian immigrant. He had a relatively happy early life, living with loving, successful parents.

This all changed when he was three-years-old, though, and his parents died in a car crash, him being the sole survivor. From then on out he lived with his caring but largely inattentive aunt.

### Primary Events

Tessio created a wild childhood for himself after that point. He made little to no effort to connect with kids his own age, instead researching and experimenting whatever caught his fancy. This caused him to be bullied mercilessly and to frequently get in trouble with his teachers, which further drove him apart from the rest of society. His relationship with his aunt has always been strained.

The specifics of Tessio's childhood remain largely unclear because it is difficult to separate fact from fiction. He claims to be personal friends with the Princess of Portugal, though his story is thin here. He also claims that he spends a few weeks in Italy with his aunt every year at the old family home in Florence, which seems to be likely. At some point in his childhood, likely around age thirteen, he left hatch-mark scars all over his body. Based on his conversation with Chisafusa, it can be gathered that Tessio grew up extremely lonely.

## Talent

Tessio says that experimenter is a profession he made up himself and that it was only officially recognized later due to his own insistence and hard work. It is unclear if this is true or another one of his lies. He claims to have traveled the world for the sole purpose of experimenting, but this is later implied to be untrue.

He has done extensive experimentation in Japan and Italy, though, and boasts an impressive number of qualifications. For years, Tessio has managed to find work in the professional field by conducting careful and patient experimentation. He most commonly works with toy companies, usually experimenting to find the most effective designs and durable building materials. Tessio also spends a lot of time volunteering at various establishments, such as zoos, animal shelters, and museums. There is no topic of learning that escapes he is completely uninterested in.

However, it is clear this memory of an Ultimate is a part of the fabrication made by The Despair Sister Location killing game, so Tessio never had a talent given by Hope's Peak Academy in the first place.

## Before the Killing Game

It is assumed that Tessio led the life of a Hope's Peak rejected high school student who fell into despair with those similar in age range. With many others, Tessio learned of the Class 78th's Killing School Life. Because of their dedication to despair, the group recreated a killing game and placed themselves and Future Foundation hostage, Chisafusa Tachibana, inside.

As a despair, Tessio took on a role of servitude. Since his primary passion in life revolved acted learning, he would not perform any actions other than beating people to death unless ordered, leaving his natural curiosity unsated. He would also sometimes blindfold himself, making him unable to observe the world around him. Additionally, he refused to take care of himself, eating only enough to barely stay alive.

At one point he meets a remnant Riko, who he had been close friends with before the game's start. The two confess that they'd had crushes on each other, and decide that a despairing act would be for Tessio to act as Riko's servant, forcing them into an unhealthy relationship that neither of them would normally want. It is also a subversion of their pregame normal where Tessio protected Riko whenever possible. They decided that eventually they would die together, and only the other one was allowed to kill him.

He also assisted in the removal of Chisafusa's kidney, being accompanied in despair with Yujiro Ohmae. He does not remember these events.

## Appearance

   Tessio is a high school aged boy, shorter than Japan standards of heights for males and most of the other cast.

At the beginning of Sister Location, he wore a plague doctor outfit. The protective suit consisted of a black cloak with plenty of secret pockets equipped inside to hold his experimenting equipment. The mask has glass eye openings and a beak-shaped nose. He also wears a large floppy black hat and heavy black leather gloves. Unlike real plague doctors, Tessio did not carry a cane - but had knives planted in his leather boots instead. A design similar to this is the garb worn by the character in the music video *'Rats Died'.*

His appearance is based on Yuma Kuga from World Trigger, so whatever is under his plague doctor mask is predetermined by the faceclaim. Once he was unmasked, Tessio has white hair and red eyes. His skin is fair and nearly pale. He has round features, making him look younger than he really is.

    Throughout the game, Tessio gradually lost and put down pieces of his outerwear. He first publicly reveals his face in Chapter Three when he leaves behind his cloak, mask, and hat to "protect" Riko's corpse. This leaves him in a black hoodie and cargo pants, which is his default outfit through several of the later chapters.

In Chapter Four, his beak is permanently squashed when he's hit with Shikou's corpse, so at various points he chooses to tape pieces of paper to his face instead. The first one just spells out 'FUCK,' while the second is a sloppy drawing of a bird.

As a remnant, Tessio wore an unbuckled straight jacket, a short skirt, and a chain and collar around his neck to signify his servitude to Riko.

### Scars

(CW - implied s/h)

Additionally, Tessio has a lot scarring over his body, most of it self-inflicted. It primarily takes the form of hatch-marks covering the vast majority of his body, giving him an almost grid-like appearance. The most notable absence of this is his back, which still has some scarring from outside sources. Most of it appears to be from wildcats. Starting in Chapter Two, he also has a knife injury on his stomach. In Chapter Five, he attempts to cut off his own ring finger, which leaves that hand covered in bandages for the rest of the game.

## Personality

Tessio's one true purpose in life is to collect data of all kinds. This includes everything to "the real reason human beings die to the most efficient grilled cheese recipe".

He collects his data through experimentation of all kinds, usually using himself or those around him as the test subjects. Tessio has no qualms about lying or manipulating others if he thinks it will produce an interesting or funny reaction. He delights in pushing people's buttons, often becoming highly amused if he can get someone to lose their cool. He tends to ignore those he considers predictable and hang onto people he cannot set off so he can figure out how they work.

It is extremely difficult for him to emotionally connect with others. He looks at people's emotions usually from a strictly biological perspective; he finds it interesting how the chemicals and people's brains effects their behaviors. Due to this, he carries no qualms with treating others however he sees fit and does not mind if he hurts them usually, because it's all just fleeting neurochemical reactions.

In the rare instance that he does become attached to someone, though, the connection is extremely strong and he's willing to do anything to protect that person and make them happy. He's often unaware of the connections when he forms them, convincing himself that this is just an exceptionally interesting experimentation subject. When he does connect to people, it tends to be because they showed genuine, sincere interest in him and do not take his experimenter's persona at face value, no matter how many times he tries to convince them it's honest.

Tessio will get very frustrated if he is unable to learn the answer to any of his constant questions. Despite appearances, Tessio is an intelligent and competent person; he has had many successful experiments in most fields and is quick on the uptake, especially to human behavior. Whether he'll share any of his insights is another story, though.

As the killing game progresses, Tessio starts to feel like he's losing control of the situation. He becomes increasingly desperate to regain control, which causes him to emotionally spiral downwards, the effects first really being noticeable after Riko's death and only getting worse with time. He becomes concerned with winning the situation in any small way he can, such as "winning" interactions with others and successfully inspiring specific emotions in them.

( TW - s/h)

Tessio has a tendency to impulsively self-mutilate when overwhelmed, which is demonstrated several times throughout the game. The first of which is in Chapter Two where he frames himself as having been attacked by the blackened by stabbing himself in the stomach just so he can see how people would react. Other examples are when Tessio attempts to remove his own ring finger upon marrying Kira for fear of disloyalty to his fiance, and once again stabs himself in the heart upon learning he was a despair. Of course, the primary example is the hatch-mark scars, which he claims were early experiments to teach him about the human body.

Tessio firmly believes himself to be unable to be truly loved by humankind, making him some nonhuman entity. Because of this, he does not put much effort into his relations, believing the outcome will be the same no matter how hard he tries, so he may as well not try. His greatest fear is becoming a monster, which he considers met when he learns he was a despair. It is implied that post game he becomes notably more timid and unsure of himself because of this.

## Relations Info

### Current Affiliation

Future Foundation's Clean-Up TeamSurvivors of the Secondary Ultimate Despair Killing Game

### Group Names

Bird With a Knife (along with Ayaki Aino)Extended Death Pact (along with Riko Kasumi & Audette Drosselmeyer)

### Playlist

[| tessio petrocchi.]

Throughout the game, Tessio frequently and loudly proclaims that he has a beloved fiance who he had been engaged to since he was four. He loves to show off his ring and rant about their love at any chance he's given. He's even willing to kill himself in the final trial at the mere implication that he caused harm to that fiance. It is heavily implied at certain points, though, that the fiance may not actually be real at all and just a coping mechanism that Tessio created to deal with past trauma.

### Riko Kasumi

Upon first meeting each other in game, Tessio and Riko immediately created a pact along with Audette Drosselmeyer that if one of them were to kill or be killed, they would invite the other to watch so that the innocent would have the opportunity to learn more about death. The two themselves became fast friends, and Tessio felt that Riko was the only one who genuinely understood him and had similar morals. Riko was one of the few students to treat him like a normal person and never get cross with him.

In Chapter Two, Tessio framed Riko by placing the blackened's skirt in Riko's locker to see how he would react to the pressure of suspicion. Riko passed Tessio's test with flying colors, and in their last interaction Tessio hugged him and declared that Riko was now forever under his protection as his favorite experiment.

Upon finding Riko's corpse, Tessio lost control of himself and tried to revive Riko, unable to admit to himself that he was dead, despite Tessio's complete and immediate acceptance of death in every other case. Throughout the rest of the game, Tessio never fully moves past Riko's death and considers his death a personal failure. It is later revealed that Tessio and Riko were a couple during the despair.

### Chisafusa Tachibana

For the majority of the game, Tessio and Chisafusa had a strained relationship. Tessio targeted him early on as an interesting subject due to Chisafusa's mysterious calmness when faced with murder. Tessio attempted to get a rise out of Chisafusa several times, such as when he hot-glued scissor blades to his hands in order to snip a lock of Chisafusa's hair and taunt him with it later. No matter what he did, though, he was never able to provoke any strong emotion from Chisafusa.

In fact, Chisafusa was always the first one to care for Tessio in any situation that required it, such as his three separate self-stabbings. Their relationship changed drastically during Chapter Five, where Tessio kidnapped Chisafusa and tortured him for information on his past. Chisafusa played Tessio, lying entirely about his intentions and past life, instead managing to get Tessio to open up about his loneliness and insecurities. Tessio eventually gave up on the torture session and freed Chisafusa, telling him that it was only fair that he got to do whatever he wanted to Tessio next. All that Chisafusa did was check Tessio's scarring and past wounds. He seemed to harbor no grudge against the experimenter.

After that point, Tessio deeply cared for the herpetologist, considering him an older brother or fatherly figure. During the chapter five investigation, Tessio is dedicated to solving the case quickly and efficiently, partially so he can determine Chisafusa's whereabouts. When the trial is over, Tessio is quick to leap into his arms, saying that he's glad he's safe.

By the end of the game, Chisafusa is the only other survivor that Tessio feels very comfortable with, and is the only survivor that Tessio keeps in touch with for the first year after the killing game.

### Audette Drosselmeyer

While they rarely interacted, Tessio valued Audette dearly. They were introduced through Riko in the first chapter, and were then told by him that they'd get along. Audette was one of the only characters in the game who never seemed off put or surprised by Tessio's actions. In fact, she seemed to find it endearing. Part of the reason for Tessio's anger at Yujiro in the third trial was that he had made Audette cry. After the third trial, when she has to be carried out of the trial room by Chisafusa, he immediately goes up to her, bonking his forehead against hers affectionately and saying that he wants to take care of her. He invites her, and Chisafusa by extension, to the kitchen, where he has portrayed a medley of baked goods, encouraging them both to eat themselves sick to get their spirits up. In chapter five, when Tessio panics and attempts to cut his ring finger off for fear of being disloyal to his fiance, Hagane criticizes him in Audette's vicinity. Audette responds with slapping Hagane, angrily telling them in French not to say bad things about her friend. After Audette's body is discovered but before it is revealed to be her, Tessio goes on a small rampage throughout the killing game. It is the first case that he, in full wits, clearly tries to solve, because there is a 2/3d's likelihood the victim was one of his dear friends. He calls for her and Chisafusa several times, but of course, is met with no reply. Once it is revealed that she was the victim and Hagane killed her, he's glad that they are going to die. Post game, Tessio names one of his kittens after her.

### Yujiro Ohmae

At first, Tessio identified Yujiro as a prime interest and seemed to admire him. In chapter two, he offered him some, but not all, of Miyo's fingers and one of her ears, which he had pickled in a homemade solution. This was in an attempt to please Yujiro because he'd have something to bury. Tessio eagerly watched him embalm, finding the process fascinating. In chapter three when Kevin Pigeon's corpse is discovered, Tessio immediately recognizes it as Yujiro's handiwork, insisting that Yujiro be tracked down and questioned. He is disallowed from doing this, though, and no one believes him. During the trial, Tessio is quick to jump on the offense, mocking Yujiro publicly about his murders and trying to force a confession from him. When Yujiro show no signs of confessing, though, and everyone tells Tessio to stop, he does, believing he may have somehow been wrong. When it is revealed that Yujiro is the killer, Tessio is filled with rage at him having killed Riko. He approaches Yujiro with a knife, planning to stab him for killing the person he loved, and as a side effect also making Audette cry. If Erisai and Ayaki had not protected Yujiro, Tessio may have snapped and killed him. Even after the game is over, he never forgives the mortician. It is mentioned in Despair Annihilation that Tessio had been the one to develop the Yujiro AI, hoping to bring him back so he can receive a logical answer as to why Riko had to die.

### Ayaki Aino

Tessio and Ayaki had few interactions during the game. The first, during the first investigation, was rather brief. Tessio had collapsed onto the floor with interest in the case, saying he was to weak to get closer to the body, and asked passerby Ayaki to help him get closer. Ayaki agreed, picking Tessio up and throwing him several feet towards the body. Their next notable interaction was in the chapter three trial, where Ayaki joined Erisai in safeguarding Yujiro against Tessio's threatened attack. During the fourth trial, Tessio is quick to figure out that Ayaki is the blackened. He does not immediately confess to this, though, instead trying to convince his classmates that he is the culprit for several minutes. When he outs Ayaki, he says his final gift to them was letting them pretend like they might get away with the crime for several minutes, although this is blatantly insincere. In a rare moment of gentleness, Tessio tells Ayaki that they should be the one to deliver the explanation of their murder so no details are missed. He seems to harbor no ill will towards the dollmaker, and instead seems relatively thankful they killed their victim. In another rpg featuring both characters, which can be considered an alternate universe, these two comprise two thirds of a trio affectionately dubbed *Bird with a Knife*. Due to this as well as having similar issues in some regards and complimentary personality types, it was later decided that Tessio and Ayaki had been friends pregame. Once Tessio remembers this after the game's end, he is devastated he helped bring a friend to their death.

### Blaine Akagawa

Tessio and Blaine did not speak much during the game, but their interactions were all positive. In one amusing conversation, Tessio did a little dance for him. Blaine, notably, also remained one of the people never to outwardly scold Tessio, and seemed happy to play along with his antics. He also showed concern for Tessio's safety in chapter two when he stabbed himself, accompanying Chisafusa to the infirmary to help treat Tessio's stomach wound.

### Erisai Chifasho

Tessio did not interact much with Erisai during the game. The interactions they did have during the trial were typically strained and Tessio seemed fond of purposefully getting on Erisai's nerves. During the third trial, Erisai is the first one to block Tessio from harming Yujiro, and he knows he could not beat her in a fight. In the sixth trial, Erisai briefly falsely confesses to being the mastermind. Tessio believes her immediately and is incredibly interested in her during this time. Post game, after Tessio takes a year to gather himself, he reconnects with all of the survivors, including Erisai. He grows to value her deeply and considers her a friend.

## Tessio's Fate

*Tessio, along with Chisafusa, Kira, Erisai, and Blaine, survived the killing game.*

Immediately following the end of the game, Tessio is rushed to the hospital, where he likely had to stay for several weeks. Following this, he had to go through court hearings with the rest of the survivors. During these hearings, he was relatively unable to focus, and relied on his fellow survivors for physical support.

Afterwards, Tessio was taken in by the unnamed head of Future Foundation's engineering department, where he acted as his apprentice. The reasoning behind this was to put Tessio's talents as a scientist to use while also being monitored to make sure he did not harm himself or anyone else. During this time, Chisafusa was the only other survivor that Tessio felt confident that he was emotionally stable enough to interact with. He was put on a medication to try and regulate his emotions. While he doesn't seem to be to fond of it, he thinks it's best if he continues taking it.

Around a year later, Tessio moved into an apartment by himself. He adopted two stray kittens and named Riko and Audette after his dead friends. He also began to reconnect with the other survivors of the killing game, eventually growing to consider them all close friends. Kira even ended up moving in with him, which would continue for the foreseeable future. Tessio ended up adopting a lot more pets and Kira had little say in this.

After Guessing Game, Tessio and Kira take in Minoru Hiyori and Kyo Haku. While initially hesitant to take in children, Tessio ends up adoring the teenagers.

 Quotes

(what did they say!)

## Trivia

* Tessio is the only member of the killing game with a scientific talent.
	+ Because of this, it is widely theorized that Tessio built the majority of the contraptions used in the killing game, or at the very least designed them all.
* Tessio is an Italian immigrant, so he is not originally from Japan at all.
	+ It can be assumed so from his name, though, this makes him the second non-Japanese character in Sister Location - the other being Audette Drosselmeyer, a French exchange student.
	+ The two are also acquainted as friends in extended Death Pact.

* Tessio and Riko Kasumi's ship name is called **Death Pact**; though, this should not be confused with their trio friendship with Audette. So, to avoid confusion, the ship name is simply called Death Pact, and the friendship is called *Extended* Death Pact.
	+ Death Pact's status as a relationship was canon for Despair!Tessio and Riko. Even so, Riko was nothing more than Tessio's undiscovered crush during the actual Sister Location game, only to figure out he had romantic affections for the other postgame.