Itachi

Biodata

Power Progression

Background / History

Birth and Early Childhood

Itachi was born to Mikoto and Fugaku at Konoha’s ninja hospital, approximately three years after Koki’s arrival in the world. Fugaku allowed Koki to name him, approving “Uchiha Itachi”—the same name he had privately intended to choose. The newborn grasped Koki’s finger and later stopped crying when returned from Fugaku’s arms to his brother’s embrace. Knowing the tragedy associated with Itachi’s original future, Koki vowed to protect him from facing it 3.

Koki helped teach Itachi to speak and walk. As he grew, Itachi became an unusually considerate child: he studied scrolls and practiced hand seals while Koki trained, rarely troubling Mikoto. After watching Koki help an elderly woman, he declared his brother his role model 37 49.

Dreams of the Uchiha Massacre

Itachi suffered recurring, unusually vivid dreams of a life without Koki. These included witnessing war, joining the Hokage’s Anbu, spying on the Uchiha, confronting Fugaku, and possessing Mangekyō Sharingan. Eventually, he dreamed of personally slaughtering his clansmen after a failed coup 71 72.

The dreams left him frightened that he might become the killer he had seen—and that revealing them would make Koki reject him. He searched Uchiha historical scrolls for answers, but found no reassurance. Koki recognized the events as the original story’s massacre and renewed his determination to prevent it. These visions are not documented advancements or actions committed by Itachi in the novel’s present 72 73 75.

Caring for Koki

When Koki was hospitalized, Itachi quickly recognized that Mikoto’s explanation understated the seriousness of his condition. At the hospital, he held Koki’s cold fingers and pleaded for him to recover. He subsequently helped care for him by fanning him, wiping away sweat, bringing water, and gently massaging his arm 170 175 180.

Following the three-year time skip, Itachi continued training daily and insisted on collecting Koki after school, even in winter. His care also became more practical and assertive: he warmed Koki’s bed, insisted that he dry his hair, and reiterated his wish to grow strong enough to protect him 193 197 205.

Sharingan Awakening and Early Missions

Itachi’s early two-tomoe awakening drew public praise, but Koki focused on his distress rather than the achievement, rebuking Fugaku for celebrating without noticing it. In private, Koki reassured Itachi that he was not angry about his eyes. Itachi nevertheless remained frustrated that his brother continued treating him as a child rather than someone he could rely upon 225 226.

After Koki became a genin, Itachi was initially asked to stay home and train. With Minato’s permission, he later accompanied Team Koki on occasional missions, helping with both wild-boar extermination and a difficult childcare assignment 245 249.

War and Later Events

Itachi chose to accompany Fugaku to the battlefield despite Koki’s opposition. Koki ultimately respected his conviction. His wartime experiences prompted questions about the meaning of life, which he raised in a letter to his brother. Koki devoted considerable thought to his reply 302 303.

Tsunade witnessed Itachi fighting during the Third Shinobi World War and was struck by his composure, judgment, and maturity despite his youth. Later, while moving through a hidden location, Itachi suffered sudden head pain, lost control of his Sharingan’s power, and experienced distorted, blood-red vision as blood ran down his cheek 329 381.

Appearance

• Build: Small, slender, and repeatedly described as frail during childhood 75 205 329.
• Features: Delicate, refined features and deep black eyes; his usual mature expression softens into a distinctly childlike smile around Koki 193.
• Sharingan: Red eyes bearing two intertwined tomoe when awakened 225.

Personality

Itachi is precocious, observant, and disciplined. He studies independently, trains without needing constant supervision, and tries to spare Mikoto unnecessary work. On the battlefield, he remains calm enough to analyze events and make precise judgments rather than panic 49 329.

His attachment to Koki contrasts sharply with that restraint. He seeks comfort through physical closeness, becomes frightened when he wakes without his brother nearby, and values Koki above friends, clan, and village. His wish to become stronger is repeatedly tied to protecting Koki and sharing his burdens 36 48 70 88.

That affection can become possessive and calculating. At the orphanage, Itachi deliberately pretends to be ill to divert Koki’s attention from other children. He is openly hostile toward Kabuto and confronts Izumi over her attempts to separate him from his brother. During that confrontation, his thoughts turn threatening toward anyone who might take Koki away 207 209 218.

Despite wanting reassurance, Itachi dislikes being treated as incapable. After his Sharingan awakens, he explicitly asks Koki to trust and rely on him, then feels disappointed when the response still seems like an adult soothing a child 226.

Abilities & Skills

Sharingan

Itachi awakens a two-tomoe Sharingan at a notably young age 225.

• His early awakening is recognized by the clan as evidence of exceptional talent 225.
• Mangekyō Sharingan appears in his dreams, but is not established as an ability he possesses in the present storyline 72.
• A later episode causes his ocular power to slip out of his control and rampage through his body 381.

Ninjutsu and Ninja Fundamentals

Itachi studies scrolls and practices hand seals from early childhood, later receiving ninjutsu guidance from Koki 49 242.

• Participates in Fugaku’s shuriken-throwing training alongside Koki, Shisui, and Obito 77.
• Continues learning techniques independently and reports mastering another unnamed ninjutsu to Koki 205.
• No specific chakra nature is established for him in the supplied accounts.

Physical Strength

Itachi displays striking power despite his small, frail appearance 205 249.

• Kills a giant wild boar with three punches, astonishing Koki and Gekko Hayate 249.
• Helps eliminate three enormous wild boars during Team Koki’s mission work 249.

Perception and Tactical Judgment

Itachi notices discrepancies in explanations and can read others’ intentions 170 218.

• Recognizes that Mikoto is withholding the seriousness of Koki’s hospitalization 170.
• Sees through Izumi’s apparently innocent behavior before confronting her privately 218.
• Earns Tsunade’s praise for calm battlefield analysis and precise decision-making 329.

Health

• Childhood frailty: Koki treats Itachi as susceptible to chills, avoiding air conditioning and fanning him by hand during summer 88 89.
• Suspected Kekkei Genkai Disease: Koki fears that using the Sharingan could aggravate an inherited illness. His concern draws partly on his knowledge of the original Itachi’s decline; the supplied account does not establish a confirmed diagnosis for the present Itachi 225.
• Search for treatment: Koki supports Orochimaru’s research in hopes of finding a cure 225.
• Later symptoms: Severe head pain, unstable ocular power, warped vision, and bleeding occur in Chapter 381; their cause is not confirmed in the passage 381.

Relationships

• Uchiha Koki — Older brother, principal caregiver, and emotional anchor. Itachi wants both exclusive closeness and recognition as someone capable of protecting him. When Koki cannot see, Itachi promises to become his eyes and care for him for life 3 48 226 285.
• Uchiha Mikoto — Mother. Itachi is generally considerate toward her, while she supports his bond with Koki and takes him to visit his hospitalized brother 37 49 170.
• Uchiha Fugaku — Father and training instructor. His pride in Itachi’s Sharingan awakening contrasts with Koki’s concern for Itachi’s distress. Itachi later chooses to join him on the battlefield 77 225 302.
• Uchiha Shisui — Welcomed into the household as another older brother. Itachi initially rejects that designation and sometimes treats him as a rival for Koki’s attention; Shisui nevertheless looks after him and later defends the brothers’ closeness 12 81 193 335.
• Yakushi Kabuto — Rival for Koki’s affection. Kabuto’s temporary stay provokes tears from Itachi, followed by mutual hostile glares 209.
• Uchiha Izumi — Rival whose pleasant public behavior conceals a shared possessiveness toward Koki. Although Koki remembers her as Itachi’s prospective partner from the original story, their present relationship becomes openly antagonistic 116 218.
• Orochimaru — An adult Itachi distrusts. He challenges Orochimaru’s reassurance about Koki’s unexplained inability to see 285.

Notable Quotes

“But when I grow up, I can train with you like Shisui does, and you can tell me about your worries too. I don't want you to keep treating me like a little kid. I want to protect you too.” 48

“Brother, last night I dreamed that the Uchiha Clan staged a coup, but it failed, and the clan was wiped out. … The whole clan was slaughtered, and all of it... was by my hand.” 71

“I've grown up. You can trust me and rely on me too, brother.” 226

Trivia

• Itachi enjoys three-color dango. When he spits out grilled meat during a barbecue meal, Koki immediately offers him dango instead 12 48.
• He receives one of Jiraiya’s books for the family bookstore, prompting Koki to forbid him from reading it or approaching Jiraiya 197.
• Koki once mistakes Itachi’s cheek for food in his sleep, leaving marks that embarrass him when he wakes 215.