Choso/Synopsis

History
As stated by Choso himself, Noritoshi Kamo, the man who experimented on his mother is in fact his third "parent" due to him having mixed in his own blood into Choso when his mother was pregnant with him. Although seemingly not remembering much about his own past, it is evident that Choso himself remembers Noritoshi and holds a grudge against him for toying with his mother and siblings' lives.

Choso is one of nine death painting wombs that came from a woman capable of giving birth to cursed spirit children. At some point, Choso and his brothers were stored at Jujutsu High, along with some of Sukuna's fingers.

Kyoto Goodwill Event Arc
Choso and his brothers, along with Sukuna's fingers were taken from the Jujutsu High by Mahito.

Death Painting Arc
Choso and his brothers are given bodies by Mahito, which Choso and his brothers decide to side with the cursed spirits since the world they envision will suit the brothers more.

Later, Choso is playing a board game with Pseudo-Geto and Mahito, when he senses that his brothers have been killed.

Shibuya Incident Arc
On October 31, Choso is with Hanami and Jogo in the curtain at Shibuya. As they block Gojo's exit and surround him with people, Choso attacks with his blood manipulation technique, which Gojo blocks with ease. Choso then watches as Hanami and Jogo take on Gojo. When Gojo rips the branches off of Hanami, Choso attacks Gojo but the attack fails to connect. After killing Hanami, Gojo then turns his attention to Jogo. Choso attempts to assist Jogo by attacking Gojo, but his techniques fail against Gojo. When more humans are thrown down to the scene of conflict, Choso kills some of the humans with his technique, distracting Gojo. Gojo responds by activating his domain expansion for less than a second, greatly stunning Choso with his flawless technique.

After Choso recovers from his shock, he heads over to Mahito and Geto's location, where the Prison Realm had embedded itself into the ground. Geto explains that the Prison Realm cannot be moved while it is processing Gojo. When Yuji yells to informs the other shamans what had happened to Gojo, Geto informs the others of the shamans heading their way and asks for a strategy. Choso replies with his plan to avenge his brothers by killing Yuji and Nobara and to retrieve his other siblings from the school. Jogo isn't sure who Nobara is and adds on that they will need Yuji to turn into Sukuna, Choso responds that he doesn't care. Choso then listens as Mahito explains how they don't need Sukuna anymore and that they can now kill Yuji. As Jogo disagrees with Mahito, Mahito proposes that whoever meets with Yuji first, can decide what they want to do. Choso says that if he meets Yuji first, then he will kill him. Choso then leaves the station with the others, after most of them decide on these terms.

Later Choso encounters Yuji and attacks him. When Yuji gets close enough to land a punch, Choso defends himself but notices that Yuji's punch had made a double impact. Choso then asks if his brothers had left any final words with him. When Yuji says that they cried, Choso becomes angry with his response and prepares to continue fighting Yuji. As Yuji jumps in the air, Choso figures that Yuji is baiting him but still launches an attack. The attack misses and Yuji manages to get close enough. Choso uses Supernova to wound Yuji's back and quickly stab Yuji's foot with a blood knife. Yuji ignores the pain and still continues. Choso uses Flowing Red Scale to overwhelm and then attacks with Piercing Blood but the technique was not fully completed.

Choso continues to attack from a distance until Yuji runs into the bathroom. Choso is hesitant to follow Yuji into the bathroom, until Kokichi manipulates Choso into entering. Once inside, Choso finds out that the bathroom has been flooded with water and destroys the device that Kokichi was using to talk to Yuji with. Yuji suddenly attacks from behind. Choso manages to defend himself but is sent into the water. Choso tries to attack with his blood but finds out that the water is making it harder for him to manipulate the blood that is outside of his body. Choso decides to use Flowing Red Scale: Stack to increase his body's capabilities to a maximum and fights Yuji in hand to hand combat. Choso continues the fight, and manages to withstand the blows that Yuji throws at him. Choso manages to land a blow that knocks Yuji out and is about to finish Yuji off, but stops when a memory appears in his head. Choso is confused about this memory and leaves the area.

Due to being confused about the "memory" he was inflicted with about Eso and Kechizu having peaceful meal together alongside Yuji Itadori as another one of his younger brothers, Choso has now become convinced that Yuji is also one of his siblings and rushed to his side. Choso arrives on the battlefield and confronts Pseudo-Geto as his notorious father: Noritoshi Kamo. He asks why he made him try and kill his "little brother Yuji" and rushes towards him just as Uraume arrives and tells Choso to move, which Choso responds to by telling Uraume to move as he's Yuji's older brother. Choso prepares to fight and uses Piercing Blood before going after Kenjaku and engaging in close combat. Kenjaku tells Choso not to push himself and says he must be tired. Choso tells him that that is not a reason not to put his life on the line for his little brother. When Momo, Noritoshi, Yuji and Panda decide to try and attack Kenjaku, Choso continues to face off against Kenjaku but is frozen by Frost Calm used by Uraume.

Choso says that the ice isn't enough to hold him and attempts to use Flowing Red Scale but is stopped by Uraume. Yuji, who was the only one not frozen, is able to free Choso. Yuji asks if Choso is their ally, but Choso says no, telling him he's his older brother and asks Yuji to try calling him "older brother" once. Choso watches as Momo tries using Wind Scythe but fails as Uraume blocks it with their bare hand. She tells Yuji and Choso that they're the only ones able to move and must buy time until Utahime is ready. Uraume uses Icefall which ends up freezing Yuji, Choso and Momo but everyone is saved by the timely arrival of Yuki Tsukumo who asks Pseudo-Geto what type of girl he's into.

Choso is unable to move and watches as Pseudo-Geto activates Idle Transfiguration which Tengen's barrier start cracking. However, Uraume's ice suddenly shatters and he along with the others frozen are freed. Pseudo-Geto asks Uraume what happened who responds poison where Choso reveals that his blood was mixed in with the Piercing Blood attack. When Kenjaku summons several curses as he makes his escape with Uraume, Choso watches in shock before asking Sukuna if he's listening, saying that the Golden Age of cursed techniques is beginning once again.

Itadori's Extermination Arc
A despondent Yuji sits alone on a large staircase, as Choso approaches him, asking about his injuries. Yuji says that he is fine because of Sukuna, who he can tell is growing stronger. Choso says that he will be fine by himself while he collects the remains of Shoso and his other brothers, telling Yuji that he can return to Jujutsu High. Yuji, however, replies that Sukuna has something planned for Megumi and that he himself has killed too many people, reminding Choso that he killed both Eso and Kechizu, his younger brothers. Choso calmly says that it was a misunderstanding and that forgiveness isn't involved when it comes to brothers. The pair then head out to deal with the rest of the cursed spirits.

Now outside, Yuji claps his hands together where two cursed spirits appear behind him and goes to try to attack him but fails. While Yuji is running, multiple other cursed spirits appear as well and follows him. Yuji leads the cursed spirits to Choso who's waiting in a tunnel. Choso uses Piercing Blood and kills most of the curses while one manages to get away from Choso's attack. Choso takes note of Yuji's improvement from the last time they fought and notes his fluid control over cursed energy and his physical strength. Choso tells his "little brother" he's very impressive as Yuji asks him if he's still going to call him that where Choso explains he will continue referring to Yuji as "little brother" until Yuji remembers that his father had stitches on his forehead.

Just then, Naoya Zenin appears wondering where Megumi is. Naoya wonders if it's possible that he's the first one there and also if Megumi slowed down. Noticing Choso and Yuji below him, he asks the pair what they're doing and says that they stand out. Asking if they're even going to run much to Yuji's confusion. Naoya tells Yuji now that Gojo is sealed, his death sentence is back. He tells the two that his business is with Megumi. Naoya adds that he can't have Yuji running around so he'll start by breaking Yuji's legs as he asks what Naoya wants with Megumi. Naoya says that he wants Megumi to die but before he does, he wants Megumi to do something. He jumps in-between Choso and Yuji, surprising the two with his speed. Both Choso and Yuji fight Naoya who's able to parry both of their attacks with ease. Naoya suddenly moves away from the two as Yuji says that he's incredibly quick. Choso adds on that it's most likely a cursed technique that Naoya is using. The fight is then interrupted by Yuta Okkotsu's arrival.

Choso comes to the conclusion that Yuta is Yuji's executioner. While Yuta is talking to Naoya, Choso tells Yuji that he must run where Yuji asks why he must run. Choso tells him that Naoya is a speed type but his speed has a hidden trick. He says that having Naoya chase him would be troublesome and that he will take him on. Yuji asks if Choso will be alright who confirms before adding on that the one Yuta and Naoya wants is Yuji. Choso thinks to himself about how Yuji won't have to feel bad for leaving him behind and having to fight the jujutsu sorcerers. He tells Yuji to just think about running away from Yuta and adds on that he most likely will be the same type as Satoru Gojo: you fight him, you die. Choso tells Yuji that he'll meet him at the same spot as yesterday.

Preparing to fight the two, Choso is taken by surprise when Naoya Zenin prevents him from chasing after Yuta who chases Yuji. Choso wonders if they thought that he'll try to block Yuta before fighting Naoya. During the initial scuffle, Naoya says that he saw Choso fight earlier and says that it's Blood Manipulation. He says that he's unsure of why Choso has the inherited technique of the Kamo Family. He adds on that outside of Piercing Blood, blood manipulation isn't that frightening. He says that in order to use piercing blood, he will need to prepare beforehand to use it. Naoya then tells Choso that this is checkmate and he will die. The fight is taken to an underground passage where Naoya blitz past Choso's defense and manages to use Projection Sorcery on the latter.

Choso is unaware of what technique Naoya is using but whatever it is, he doubts Naoya will disclose it as he's over powering him. Naoya comments that Choso is a tough individual and asks who he is. Choso says that he's the oldest of ten siblings while activating Flowing Red Scale: Stack. Naoya says that isn't an answer before adding on that his question was asking about his cursed technique and toughness. He tries bypassing Choso's defense but Choso is able to adjust to Naoya's speed which surprises him. However, Naoya punches Choso and sends him crashing into the wall.

Choso is surprised that he's bleeding and Naoya reveals that he stabbed Choso. Naoya makes an off-handed comment about his brothers which prompt Choso to talk about his brotherly bonds. Choso asays that Naoya is who he is because of his brothers, which irritates Naoya. He adds that he's tough because as the older brother, he must walk ahead. Choso starts bleeding profusely which shocks Naoya. Due to the wave of blood, Naoya's sight on Choso has disappeared and Choso is able to move to a different location. Some of Choso's blood lands on Naoya's hakama which weighs him down, confusing Naoya who wonders if Choso is controlling the blood. Choso tells Naoya that this is checkmate. Naoya asks if he's sure about it before running towards Choso. Choso then activates Supernova as Naoya closes the distance and manages to defeat Naoya while also poisoning him with his blood in the process.

Suddenly from behind Choso, Yuta is dragging a limp Yuji behind him. Choso turns around in confusion but is knocked unconscious by Yuta.

Perfect Preparation Arc
While Yuta, Megumi and Yuji are talking about Master Tengen's barrier, Choso interrupts the conversation, startling Megumi with his sudden appearance. Choso says that there may be some way to past the barrier. He says that Mahito once managed to steal Sukuna's finger along with the Death Paintings and that they can do the same.

Choso along with Megumi, Yuta and Yuji later arrive at Tokyo Jujutsu High and finds Yuki Tsukumo with Maki. Maki asks Megumi about how to get past Master Tengen's barrier where Choso says he will explain. He explains that between the tombs and doors, there is a cursed tool warehouse where the remains of his brothers are held at and with his blood connection to his siblings, he will be able to lead them to the tomb. When Maki asks who Choso is, Yuji says just to think of him as his older brother which generates a surprised response from Choso. The group heads into a door where Yuji leaves Choso behind at the warehouse where the rest of the Death Painting Wombs are being held at. Yuji along with Megumi, Maki, Yuki and Yuta go on ahead while Choso follows shortly behind them and enters the elevator down to where Tengen is. Yuji notices the bloodstains and asks what happened where Yuki explains what happened 11 years ago. The group enters the main shrine and find that there's nothing there when Yuta says to head back as Tsumiki doesn't have enough time.

Just then, Master Tengen appears and asks why they're leaving so soon before greeting them, shocking Yuji and the others present. Choso is shocked to see Tengen as Yuki greets them, asking if he's going to say hello to her. When Yuki confronts Tengen asking about why they closed off the Tombs of the Star Corridor where they say that they were worried that they were aligned with Kenjaku. Confused by who Kenjaku is, Yuki asks who they are, Tengen reveals that they are the sorcerer who was once Noritoshi Kamo and now is inhabiting Suguru Geto's body. Yuji suddenly interrupts the conversation asking why Master Tengen looks the way they look who says that they are immortal but is not immune to aging and that is the reason why they look the way they are. Tengen tells him that in 500 years he'll look like this as well where Yuji is surprised by this. They tell the group that 11 years ago when they failed to merge with a Star Plasma Vessel, their aging accelerated and their self awareness as an individual diminished and that the world became themselves. When Megumi and Yuta interrupts Tengen, asking about Kenjaku's objectives and how to free Gojo.

Yuji listens as Tengen says that they wished they could've simply said yes but they will need either Yuki Tsukumo, Yuta Okkotsu or Choso to remain as their two guards. Yuki objects to this says it isn't fair because they haven't told them why and for how long they need to do it. Tengen explains about how Kenjaku's objective is to force the evolution of all human beings throughout Japan. While Tengen is explaining about how Kenjaku lacks the cursed energy to do so. When Tengen reveals that the method Kenjaku has chosen is to merge humankind with themselves. Choso asks them how can they merge with multiple people when they're only one individual where Tengen explains what happened 11 years ago. They add on that if humankind evolves and only one person rages out, the world will end. Yuki asks them why who says that the impurities of a hundred million people would flood the world, which what happened to Tokyo would happen to the entire world as well. They add that there are no boundaries between individuals so evil would instantly spread. When Maki asks why they refuse to merge, Tengen says that is the problem. Yuji asks Tengen why Kenjaku would do this who is unsure why because they cannot read human hearts.

Tengen tells the group that now that they've evolved, they are more cursed spirit than human which makes them a target for cursed spirit manipulation, shocking everyone. While Tengen is explaining everything, Yuji listens to them as Tengen tells the group that considering Kenjaku's ability as a sorcerer, he might be able to seize themselves if they encounter each other. They add that this is the reason why their main body is rejecting everything at the Tombs of the Star Corridor. Yuta wonders if that's the reason why they want guards which they confirm. They tell them that Kenjaku is the second most powerful barrier user behind themselves where Yuki asks them why now of all times. She adds on that he prevented a merging with a Star Plasma Vessel, forced their evolution and also wants to consume and control them through cursed spirit manipulation. She adds on that he was apparently involved with Sukuna and has been a sorcerer for at least 1,000 years. Tengen tells her that themselves, the Star Plasma Vessel and the Six Eyes are all connected by faith.

Tengen reveal that Kenjaku lost twice to a sorcerer with the Six Eyes and the second time he took no chances and killed both the Star Plasma Vessel and the Six Eyes less than a month after they were born. On the day of the merging, both the Six Eyes and the Star Plasma Vessel appeared. Which Kenjaku switched to sealing instead eradicating the Six Eyes and thus began searching for the Prison Realm because two bearers of the Six Eyes cannot appear at the same time. However, the unexpected happened 11 years ago when Toji Zenin intervened. Tengen tells them that he was physically gifted through a heavenly restrition and was an anomaly who had zero cursed energy and destroyed their destiny. Then game a boy with curse manipulation, where all the pieces suddenly came together other than for the Prison Realm which fell into his grasp six years ago.

When Megumi asks why the culling game is happening, Tengen explains the culling game uses the participants and the boundaries binding barriers in a ritual that conveys to the human beings of this country to the other side. And with that, Kenjaku will begin the merging with themselves, however, to preform the ritual, he has undertaken certain binding vows. They add on that one stipulates that he isn't the game master and this game doesn't work in their favor because even if Kenjaku is killed, the culling game will continue until all participants are either dead or the players refuse to participate and die. Yuji notices that Megumi is upset by this but is unsure why. Yuta concludes that they have no other choice but to participate and add a rule that allows Tsumiki and other unwilling participants to safely get out. Megumi adds that they also should free Gojo sensei because he would be able to settle everything on his own. Yuji looks over at Master Tengen and asks for them to tell them but they say to first decide who should remain as guards.

Much to the surprise of both Yuji and Megumi, Yuki and Choso step up for that position. Choso tells Yuji he will absolutely need either Yuta or Yuki's cooperation especially if Kenjaku comes for Tengen. Tengen thanks the group before pulling out a box that is the "back" of the Prison Realm. Tengen explains that before Kenjaku found the Prison Realm, it was outside of their barrier who believes it was overseas and reveals that by sealing the rear gate, they were hiding the existence of the "front" but it was useless. Yuji asks if it's like a back gate which Tengen confirms it is. Tengen tells them that Gojo is sealed inside of the rear gate as well and that the authority of opening the gate rests with Kenjaku as he is the bearer point of the "front". They add on that to break it open, they will need the Inverted Spear of Heaven that nullifies cursed techniques and or the Black Rope that disrupts and cancels cursed techniques effects.

Yuji and Megumi are shocked because Gojo either sealed and or destroyed it 11 years ago but Yuta tells them that he along with Miguel searched for it in Africa but to no avail. Yuki asks Tengen if there's a way who confirms there is. Tengen reveals that among the players participating in the culling game there is a sorcerer from 1,000 years ago who calls herself an angel and that her cursed technique can extinguish any cursed technique.

When Megumi asks Master Tengen if they are aware of where Hana Kurusu is, Tengen confirms this and tells them that she is in the colony on the east side of Tokyo. Master Tengen adds on that because the barrier rejects them, they don't have anymore information. They tell them that there are ten colonies around Japan and that they are connected by a barrier that forms a line that sends humans from Japan to the other side. Yuki asks if the reason why Hokkaido isn't included because of the jujutsu society's barriers where Tengen confirms and says that has already been established as a vast sacred area with Yuji commenting on how that's rugged lands. Tengen tells them that conveyance to the other side may sound like an exaggeration but a curse fell on everyone in Japan in preparation of the merger. Megumi asks how long will it take to complete the ritual where they say it will most likely take 2 months.

Maki says that it's currently 9 a.m. on November 9th, Yuta adds on that the sorcerer players awakened at about midnight on October 31st. Megumi comes to the conclusion that Tsumiki only has 10 days and 15 hours to declare her participation.He then turns to Master Tengen and says that they mentioned those who refuse to participate in the Culling Game will be killed, a statement Tengen confirms. Maki then says how Shoko was correct about the cursed technique removal and also adds on that sorcerers without a cursed technique such as herself aren't at risk. Yuji wonders about the civilians who are already inside a barrier to which Tengen says that they will be given a chance to exit, much to his surprise. Yuta sarcastically comments on how generous of them.

Tengen says that there is no rule about entering or exiting colonies and adds on that from the start, players are given a clear objective of exiting the barrier and that they suppose this is for stimulating the game. Tengen tells them that in order to confine the players, the premise that they entered of their free will is important. Yuji thinks about what Ino told him about the "increase or decrease" of a barriers effectiveness. Tengen tells them that each player will receive a shikigami that's called a Kogane. Tengen adds that a Kogane is less game master than an interface. They say that they may think of the game master as the Culling Game programmer which confuses Yuji. Yuji says that they're unable to subtract rules that already exist while Megumi says that there are ways to counteract the rules. Choso asks if the sixth rule is fair which Yuta confirms while Maki comments on how it gives the game master a lot of leeway.

Tengen informs them that the players are subjected to strict rules and sorcery wise, Kenjaku is due to no further bias. Yuji is disappointed that he will be forced to kill people again as Megumi tells him that he has a few ideas. Maki tells them that's all the information they have and now they all have a role to play with Yuki and Choso remaining as Master Tengen's guards. Maki says that she'll return to the Zenin family and collect cursed tools. She reveals that soon after Satoru Gojo was sealed, the Kamo and Zenin family went to Tokyo Jujutsu High's cursed warehouse and completely emptied it, Maki also includes that Megumi is now the current Zenin family leader much to Yuji's surprise. Maki adds on that thanks to Megumi being the new family leader, it's possible to search the Zenin family's warehouse at length. She turns to Master Tengen and asks about Juzo Kumiya's warehouse.

Maki tells them that afterwards, she will go look for Panda and help address the game. She then turns to Yuta and asks what he will do, Yuta says that he will enter a colony immediately before Tsumiki Fushiguro is needed to enter the game, he wants to gain more information. He says that he will avoid nearby colonies so they won't end up killing each other and also just in case something happens to Tsumiki. Just then, both Yuta and Yuji realizes that Yuji asked for Yuta to kill him if Sukuna ever takes over his body. Megumi assures Yuji that it won't happen and says that if it ever did happen and he dies, Megumi tells Yuji to just have Yuta to kill him. Yuji is angry by this as the point was to not let that happen. Megumi turns to Maki who tells them to go to Kinji Hakari as planned where Yuji is confused as to who that is.

Yuta reveals that Kinji is a suspended third-year as Maki tells them that because they're shorthanded they will need to get as many people involved as possible. Yuji asks if Kinji is tough, Maki responds that he's moody while Yuta tells him that when Kinji is worked up, he is stronger than himself, an assertion denied by Maki. Yuji along with Maki, Yuta Okkotsu and Megumi start heading out before Yuji calls out to Choso and thanks him who tells Yuji not to die.

After the four of them left, Choso is left with Yuki and Master Tengen as he covered his eyes with his hand. Yuki asks if Choso is crying who doesn't respond.