Mishima

Biodata

Feature	Value
Name	Mishima Yuto 21
Original Name	三岛
Species/Race	Human; vessel for Gu Yanzhi in Kurourushi’s cursed-spirit body 20 21
Gender	Male 21 24
Age	12 23 24
Occupation/Role	Culling Game survivor and novice jujutsu practitioner 21 23
Family	Xiaozhi, his deceased younger brother 26 28
Status	Last shown gravely injured and caught inside Takako Uro’s domain; his subsequent fate is not established in the provided passages 27 28 29
First Documented Appearance	Appears as an unnamed boy in the provided context before introducing himself as Mishima Yuto 20 21

Power Progression

Stage / Realm / Level	Chapter	Notes
Cursed-spirit vessel	20	Gu Yanzhi’s curse saves his life, while Kurourushi’s injured body survives by attaching to him and becoming dormant.
Cursed-spirit perception and basic reinforcement	21	Gu enables him to see nearby curses. After repeated attempts, Mishima maintains a faint coating of cursed energy on his arm for several seconds.
First cockroach-swarm activation	21	Successfully activates Gu’s technique, but fright causes him to interrupt the energy supply and scatter the swarm.
Sustained reinforcement and swarm control	23	After roughly half a day of training, can maintain reinforcement for several minutes and direct cockroaches in formation.
First documented cursed-spirit victory; sword manifestation	23	Defeats a toad-like curse through reinforcement, swarm attacks, and repeated punches. Subsequently manifests the Festering Life Sword.
Improved combat coordination	24	Restrains a nimble curse with cursed energy and overwhelms it with cockroaches, impressing Gu with his developing instincts.

• No formal sorcerer grade is established. Gu estimates that Mishima might eventually reach Grade 2 or approach Grade 1 combat ability with further training; these are projections, not attained ranks 22.

Background / History

Xiaozhi’s Death and Gu’s Attachment

Mishima’s younger brother, Xiaozhi, idolized him as a hero. During the Culling Game, two Swimmers killed Xiaozhi, and Mishima fled in terror. Xiaozhi’s despair at being abandoned produced a curse that attached itself to Mishima 26 28.

Gu Yanzhi later became a second cursed presence within him. Mishima woke in a sewer, disoriented and unable to remember how he had arrived there. He searched the devastated city for food and hoped to find his family. At a convenience store, two men with cursed energy fled after sensing the frightening presence surrounding him, although Mishima did not understand their reaction 20.

Training and the Search for Okkotsu

Gu explained the Culling Game barrier and began teaching Mishima to use cursed energy and cockroach manipulation. He intended to send Mishima to Yuta Okkotsu and ask Okkotsu to kill him before his bloodlust returned. Mishima refused to abandon him, offering to remain his vessel instead 21 22.

Their journey toward Okkotsu took them through sewers to avoid Dhruv Lakdawalla’s shikigami. Despite his fear of returning underground, Mishima followed the route and survived encounters with cursed spirits. He continued onward while injured rather than delay their search 23 24.

Beneath a bridge, Mishima reunited with Yamada and shared food and water with sheltered civilians. When a pursuing pterosaur shikigami appeared, Gu took control of his body because the encounter exceeded Mishima’s abilities 24 25.

Okkotsu subsequently listened to Mishima’s account of Gu and refused to assume the spirit had to be killed. Comparing their bond to his own past with Rika, he offered to help and invited Mishima to Jujutsu High. Afterward, Mishima confessed to Gu that his determination came from regret over abandoning Xiaozhi, not from believing himself a hero 26.

Intervention Against Uro

Takako Uro ambushed Mishima with Thin Ice Breaker. Gu fully manifested to shield him, but the residual attack still left Mishima unconscious and bleeding heavily along his left side 26 27.

While incapacitated, Mishima relived Xiaozhi’s death and faced his brother’s accusing cursed spirit. He admitted his fear and apologized. On regaining awareness, he chose to approach Gu’s battle despite his injuries and an overwhelming instinct to flee 28.

Mishima leaped into the cockroach swarm, caught the disarmed Festering Life Sword, and urged Gu to attack. Their pincer attack pressured Uro into expanding All-Enveloping Garbhadhatu, trapping both of them inside. Gu later credited Mishima’s intervention with disrupting the fight’s balance 28 29 31.

Appearance

• Youthful appearance: A twelve-year-old boy who looks barely into his teens 23 24.
• Condition beneath the bridge: Torn clothing stained with blood and sewage, a filthy face, and cockroaches crawling around him initially frighten the survivors 24.
• Oppressive presence: Gu’s attachment gives him a disturbing aura that makes others instinctively retreat, including people who recognize him 22 24.
• Injuries after Uro’s ambush: Heavy bleeding and severe wounds along the left side of his body; jumping into the battle tears those wounds open again 27 28.

Personality

Mishima is frightened easily but remains curious and talkative enough to tease Gu during training. He compares their partnership to Naruto and Kurama, calls Gu’s cockroach technique disgusting, and questions why Gu cannot act for himself 21.

His loyalty is especially strong toward people who have helped him. He considers Gu a companion despite knowing that the spirit could kill him, defends Gu’s character to Okkotsu, and shares supplies with strangers. Beneath this earnestness is intense guilt over Xiaozhi’s death: Mishima calls himself a coward and resolves to choose what he believes is right rather than what is easiest 22 24 26.

His courage does not eliminate his fear. During the battle with Uro, he recognizes that he may be dying and feels compelled to retreat, yet advances to help Gu anyway 28.

Abilities & Skills

Cursed Energy Reinforcement

Mishima learns reinforcement through Gu’s improvised instruction, relying on practice and sensation rather than formal theory 21.

• Coats his body, fists, and objects such as an iron pipe with cursed energy 22 23.
• Uses concentrated reinforcement to seize a cursed spirit’s fist and hold it in place 23.
• Demonstrates unusually rapid learning despite poor instruction 22 23.
• His control falters under fear, and reinforcement does not prevent serious injuries 23.

Cockroach Manipulation

Through his connection with Gu, Mishima can activate the cockroach technique associated with Kurourushi 21 22.

• Directs swarms in formation and sends them to scout routes 23.
• Coordinates swarms with close-range restraint, allowing the cockroaches to consume an immobilized enemy 23 24.
• Initially loses control when startled by the swarm’s appearance 21.
• Access to Gu’s special-grade reserves does not establish Mishima himself as a special-grade sorcerer 22.

Vessel Connection

Gu can communicate within Mishima’s mind, guide him, and take control of his body when necessary 21 24.

• Gu’s dormant presence initially suppresses his own bloodlust and keeps him rational 21 22.
• Gu suppresses leaking cursed energy to reduce the risk of attracting Dhruv’s attention 23.
• While controlling Mishima, Gu manifests Kurourushi’s armored arms and wings; these feats are Gu’s actions, not independently mastered abilities of Mishima 25.
• The arrangement becomes dangerous as Gu’s body recovers and his bloodlust returns 26.

Equipment / Weapons / Items

• Festering Life Sword — A pitch-black blade bearing writhing, eyeball-like orbs and an aura of decay. Mishima manifests and retracts it, then later retrieves it during Gu’s battle with Uro 23 24 28.
• Iron pipe — An improvised sewer weapon reinforced with cursed energy; knocked away by the toad-like curse 23.
• Backpack and provisions — Carries bread, cookies, and bottled water gathered from a convenience store; shares them with civilians beneath the bridge 24.

Relationships

• Gu Yanzhi — Attached cursed spirit, mentor, and companion. Gu saves and trains him; Mishima refuses to abandon him and risks his life to assist him against Uro 21 22 26 28.
• Xiaozhi — Younger brother who viewed Mishima as his hero. His death and Mishima’s flight become the source of Mishima’s guilt; Xiaozhi’s curse also haunts him 26 28.
• Yamada — Familiar friend and fellow survivor. Their reunion briefly lifts Mishima’s exhaustion, but Yamada’s question about Xiaozhi leaves him unable to answer 24.
• Yuta Okkotsu — Prospective protector. Listens to Mishima, offers an alternative to killing Gu, and invites him to Jujutsu High; Mishima’s arrival there is not confirmed 26.
• Takako Uro — Enemy who gravely wounds him. Mishima later intervenes against her and is engulfed by her domain alongside Gu 27 28 29.

Notable Quotes

“I can't abandon a companion. If you can stay rational inside me, then we just have to keep you from fully manifesting, right? I can keep being your vessel.” 22

“So this time, I don't want to choose the easy path. I want to choose the path I believe is right.” 26

“Don't hesitate, Mr. Gu!” 28

Trivia

• Mishima compares himself and Gu to Naruto Uzumaki and Kurama; Gu privately considers Yuta Okkotsu and Rika the closer comparison 21.
• Gu identifies Mishima as a character who did not exist in the original story, explaining that saving him alone did not meaningfully change a main plotline 31.
• Gu later remembers Mishima as one of his two students, alongside Yuji Itadori, and praises his rapid grasp of reinforcement 39.