Uchiha

Biodata

Feature	Value
Name	Uchiha
Original	宇智波
Type	Neutral Character (AI)
Affiliation	Uchiha Clan
Occupation/Role	Uchiha Yang's autonomous body; cultivates and fights on his behalf
Status	Active
First Appearance	2

Background / History

Uchiha is the collective autonomous consciousness of Uchiha Yang's body. Its individual parts—including the Brain, Sharingan, Hand, Legs, elemental attributes, and later Shadow—can speak, cultivate, argue, and seize control of Yang's actions. Yang initially has no combat training or experience, so his body performs the fighting while he permits it to act. 2 3

During the Uzumaki raid on the Uchiha compound, the body first demonstrates its combat capability. The Legs use Ghost Leg to bypass a sealing obstruction, and Chidori kills an Uzumaki chunin; afterward, the Hand takes control of a stolen blade against a Senju chunin. 2 3

Yang increasingly delegates burdensome tasks to Uchiha. The Brain develops the revenge plan against the Uzumaki Clan, while the body cultivates when Yang sleeps or refuses to train. 6 12 The Shadow awakens independently and later becomes Yang's designated administrator after he accepts the Uchiha clan head position. 47 49

Power Progression

Stage / Realm / Level	Chapter	Notes
Autonomous combat activation	2	Legs activate Ghost Leg; the body uses Chidori to kill an Uzumaki chunin.
Two-Tomoe Sharingan	3	Yang's masked body fights invading Senju and Uzumaki forces while the Sharingan seeks further stimulation.
Three-Tomoe Sharingan	4	The Sharingan develops its third tomoe amid battle with Uzumaki Jiusen, enabling stronger perception and genjutsu.
Mangekyo Sharingan	6 7	Yang develops the Mangekyo Sharingan during emotional turmoil; the Sharingan identifies itself as Mangekyo shortly afterward.
Nightmare World	27	The Mangekyo technique stops Black Zetsu's attack and traps him in an illusionary mental space.
Shadow awakening	47	Yang's shadow awakens, detaches from him, and remains connected to him.
Eternal Mangekyo Sharingan	50	The Sharingan manifests the Eternal Mangekyo Sharingan during Yang's clan-head succession.

Abilities & Skills

Autonomous Body Control

Uchiha's components can independently control Yang's body, often acting before he consciously reacts.

• The Hand can wield weapons and engage in swordsmanship. 3
• The Legs provide extreme mobility and can activate Ghost Leg. 2
• The body can continue cultivating while Yang rests or sleeps. 5 6
• Yang can reclaim control, after which the other components return to cultivation. 5
• Yang has no combat experience of his own at the beginning; his body's intervention is essential in battle. 3

Brain

The Brain is Uchiha's strategist and planner.

• Developed the Uchiha revenge plan against the Uzumaki Clan. 6
• Calculated the timing used to exploit the Uzumaki Clan's lowered defenses. 13
• Designed the chakra self-sealing infiltration method used against the Uzumaki sensory barrier. 12
• Contacts outside clans and supports Yang's strategy of using other forces against the Senju. 38
• Develops new weapons by combining ninja-world armaments with explosive tags. 47

Sharingan

The Sharingan is a battle-driven component focused on obtaining greater power.

• Tracks opponents' movements and searches for openings for genjutsu. 4
• Uses genjutsu to weaken Uzumaki Jiusen mentally, enabling his defeat. 4 5
• Possesses Mangekyo Sharingan and later Eternal Mangekyo Sharingan. 7 50
• Employs the Nightmare World technique against Black Zetsu. 27
• Can detect abnormalities, such as suspicious conditions in a river during Yang's journey. 23

Legs

The Legs prioritize speed, evasion, and rapid killing.

• Ghost Leg — Allows Yang to move so quickly that he bypasses a sealing obstruction and appears behind an opponent. 2
• Can propel Yang at speeds described as exceeding a jonin's. 2
• Routinely takes responsibility for pursuit, escape, and high-speed movement. 3 22

Hand

The Hand specializes in direct combat and weapon use.

• Seizes weapons and attacks autonomously when threats appear. 3
• Coordinates with the Legs and Brain during combat. 4
• Claims its blade can “sever all things.” 4

Shadow

The Shadow, later called Ying, is an independently awakened portion of Uchiha.

• Detaches from Yang while maintaining contact with him. 47
• Possesses Yang's intelligence and can act independently. 48
• Is entrusted with managing clan-head duties after Yang's succession. 49 50

Relationships

• Uchiha Yang — Master and host; Uchiha's components cultivate, fight, plan, and eventually administer the clan for him. 3 49 50
• Uchiha Kage — Yang's elite jonin protector; protects the master while Uchiha's components coordinate combat. 4 5
• Uchiha Madara — Yang's cousin and a supporter of his leadership; trusts Yang's intellect and transfers the clan-head position to him. 10 50
• Uchiha Izuna — Yang's cousin; executes plans developed by the Brain and supports Yang's succession. 11 49
• Shadow/Ying — An awakened part of Uchiha assigned responsibility for Yang's administrative work. 47 49

Notable Quotes

“Master has actually entrusted such an important task to me; I certainly won't let him down.” — Brain, after receiving responsibility for the Uzumaki revenge plan 6

“I am now a Mangekyou Sharingan, an invincible existence in the ninja world.” — Sharingan 7

“Speed determines everything.” — Legs 2

Trivia

• Uchiha's components frequently bicker over who should attack or receive credit in battle. 2 4
• The Brain, Sharingan, Hand, and Legs regard the Shadow's clan-administration role as a convenient way to preserve Yang's lazy lifestyle. 49
• Yang's body parts are more eager to train and pursue power than Yang himself. 3 7 22