Uchiha Mu

Biodata

Feature	Details
Name	Uchiha Mu (宇智波无)
Alias(es)	Shadow — ANBU codename 14 15
Species/Race	Uchiha clan member
Gender	Male
Age	12 when his system awakens; 15–16 by the Chunin Exams 2 15
Affiliation	Konohagakure ANBU; Void Organization (leader) 11 43 50
Occupation/Role	ANBU operative; founder and leader of the Void Organization 43 44 50
Status	Active 50
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Peak Chunin	2	Absorbed an All-Attribute Chakra Seed, awakened the Three-Tomoe Sharingan, and reached peak Chunin chakra levels; his combat strength could contend with an elite jonin 2.
Mangekyō Sharingan → Eternal Mangekyō Sharingan	4	Awakened the Mangekyō Sharingan through grief after Fugaku and Mikoto's deaths, then fused their eyes into his own to gain the Eternal Mangekyō Sharingan, Domain of Time, and Scar of Space 4.
Initial Shadow level	5	His engagement to Izumi causes his chakra to surge to 7,500.2 and stabilizes his realm at Initial Shadow level; he possesses Susanoo and Kage-level combat power at age twelve 5.
Three-Tails transformation	9	Absorbed 80% of the Three-Tails' chakra, completed the system mission, and gained Tailed Beast Transformation 9.
Mid-Kage level	21	Refined absorbed One-Tail chakra, crossed the peak of early Kage level, and entered mid-Kage level; his chakra, physical ability, and space-time foundation all improve 21.
Eight Gates: Minor Mastery	22	Perfected the Gate of Opening, Gate of Healing, and Gate of Life; the first three gates can be opened without burden, while later gates become more accessible 22.
One-Tail/Three-Tails chakra fusion	45	Fused Shukaku and Isobu's chakra after repeatedly using Time Reversal to survive the process 45.
Beyond Kage level	49	Reaches a level surpassing Kage during the battle for control of the Fortress of Space/Sky City 49.

Background / History

Mu was born unable to sense, absorb, or cultivate chakra, a condition described as a Zero-Chakra Constitution. Fugaku adopted him as a foster son, but Mu spent much of his childhood apart from the core Uchiha family because he was considered talentless. His system recognizes his mental age as that of an adult despite his physical age of twelve. 1 2 3

On the night of the Uchiha Clan massacre, his system activated and offered him a choice between saving clan members for skill points or ignoring their deaths and gaining mental fortitude. Mu prioritized Uchiha Izumi instead, using a Love Transfer Card to redirect her affection from Itachi toward himself. He then absorbed an All-Attribute Chakra Seed, awakening the Three-Tomoe Sharingan and gaining his first usable chakra. 1 2 4

Mu saved Izumi from Obito by expending a Kage-Level Replication Card to copy Kamui. He fought Obito to a standstill, using copied space manipulation, Five Elements Clones, and Five Elements Adamantine Sealing Chains before Obito withdrew. 2 3

Fugaku gave Mu his eyes and urged him not to stop Itachi. After Itachi killed Fugaku and Mikoto, Mu awakened the Mangekyō Sharingan and fused his foster parents' eyes to obtain the Eternal Mangekyō Sharingan. He confronted Itachi but honored Fugaku's request by sparing him. 3 4

Following Izumi's acceptance of his proposal, Mu gained a massive chakra increase and began pursuing forbidden techniques, tailed-beast chakra, and political opportunities that would let him grow stronger. 5 10

Appearance

Mu is a tall, lean youth whose fitted ANBU uniform conceals an unusually powerful physique. His Eternal Mangekyō Sharingan is scarlet, and its tri-pronged pattern is visible when activated. 5 25

• Often operates in ANBU attire and under the codename Shadow 14 15.
• Wore a cat mask while rescuing Izumi from Obito during the clan massacre 2.
• His chakra-enhanced body grew noticeably after absorbing the All-Attribute Chakra Seed 2.
• Manifests a crimson, armored Humanoid Susanoo in major battles 30 32.

Personality

Mu is intensely power-driven. His long period as a chakra-null child leaves him determined to ensure that he will never again be powerless, and he treats personal strength as the foundation for survival and influence. He endures severe pain to gain power, including the fusion of One-Tail and Three-Tails chakra. 4 30 45

He is patient, calculating, and willing to manipulate others when it advances his goals. He redirects Izumi's affection through the Love Transfer Card, spreads news of the Uchiha massacre to incite external pressure on Konoha, and plans around the theft of the Scroll of Sealing rather than acting impulsively. 4 5 6

Despite this pragmatism, Mu repeatedly protects Konoha and its younger ninja. He saves Izumi and Naruto, suppresses Gaara's rampage, prevents Orochimaru from taking Sasuke, and faces the reanimated First and Second Hokage to defend the village. He rejects the titles and political rewards offered afterward, preferring training and independence. 2 13 21 26 29 33

Abilities & Skills

Eternal Mangekyō Sharingan

Mu's Eternal Mangekyō Sharingan grants him exceptional ocular power without the ordinary Mangekyō's immediate deterioration concerns. Its defining powers are control over time and space. 4 5

• Domain of Time — Creates a temporal domain that can slow targets and attacks, halt movement, or reverse an event's temporal flow 5 9 21 29.
• Scar of Space — Manipulates spatial traces for instantaneous movement, barrier bypassing, long-distance travel, and space-time counters 5 6 29 48.
• Time Reversal — Reflected Hashirama's Wood Release and Tobirama's Water Severing Wave back at their casters 29.
• Space-Time Swap — Countered Tobirama's Flying Thunder God assassination attempt 29.
• Stasis Prison — Temporarily restrained the reanimated Hashirama and Tobirama 28.
• Genjutsu resistance — His ocular power blocked Itachi's Tsukuyomi 4.

Sharingan and All-Attribute Constitution

The All-Attribute Chakra Seed grants Mu access to Wind, Fire, Lightning, Water, Earth, Yin, and Yang attributes. His Three-Tomoe Sharingan provides copying, enhanced perception, enhanced vision, and enhanced genjutsu. 2 5

• Creates Five Elements Clones capable of coordinating elemental techniques 3.
• Uses Five Elements Adamantine Sealing Chains to restrain targets, including Obito 3.
• Employs Fire Style techniques such as Phoenix Sage Fire and Continuous Great Fireball Technique 3 9.
• Displays five Kekkei Genkai during his battle with Danzō 30 32.

Tailed Beast Chakra and Transformation

Mu absorbs and assimilates tailed-beast chakra rather than merely borrowing it. He has acquired chakra from the Three-Tails and One-Tail, then later fused both sources within himself. 9 21 45

• Absorbed 80% of the Three-Tails' chakra and transformed into the Three-Tails 9.
• Fired a Tailed Beast Ball powerful enough to destroy Konoha's barrier and split the village 9.
• Absorbed One-Tail chakra, suppressing Shukaku's consciousness and restoring Gaara's reason 21.
• Uses his Domain of Time to freeze Hidan's regenerative ability 50.
• Combines One-Tail and Three-Tails chakra with his ocular power and Eight Gates techniques in high-level combat 29 45.

Eight Gates

Mu unlocks the Eight Gates after tracking Obito through residual chakra. His physical ability rises sharply as he improves his mastery. 14 22

• Gate of Opening — Shattered a thousand-pound boulder with a single kick 15.
• Minor Mastery — Enables effortless use of the first three gates and improves his tolerance for later gates 22.
• At full use of the first three gates, his explosive power can contend with late-Kage-level opponents 22.

Susanoo

Mu can manifest a crimson Susanoo, eventually reaching its third-stage Humanoid form. 5 30 32

• Wields the Sky-Piercing Halberd / Susanoo Fangtian Halberd against Danzō 30 32.
• Uses a Sword of Susanoo to strike Obito and Deidara across long distances 47.
• Its defensive and offensive power allows him to confront opponents such as the reanimated First and Second Hokage 29 30.

Forbidden Techniques

After gaining access to the Scroll of Sealing, Mu studies several forbidden techniques to expand his combat options. 10

• Multiple Shadow Clone Technique 10 15.
• Mutual Multiplication Explosive Tags 10.
• Flying Thunder God Technique 10.
• Secretly teaches Naruto the Shadow Clone Technique and encourages him to develop through his own effort 13 15.

Replicated Kamui

Mu temporarily copied Obito's Kamui using a Kage-Level Replication Card during the Uchiha massacre. 2

• Became intangible to evade Obito's Fire Style attacks 2.
• Used Kamui suction to pull Obito toward another dimension 3.
• Limit: The copied intangibility consumed chakra rapidly and could only be maintained for roughly three to four minutes; the replication card itself lasted ten minutes 2.

Notable Items

• All-Attribute Chakra Seed — Awakened his Three-Tomoe Sharingan and granted an all-attribute constitution 2.
• Kage-Level Replication Card — Temporarily copied Obito's full Kamui ability set 2.
• Love Transfer Card — Redirected Izumi's affection toward Mu 4.
• Matching engagement rings — Exchanged with Izumi; their connection triggers a major increase in Mu's chakra 5.
• Scroll of Sealing — Source of the forbidden techniques Mu chooses to practice 10.

Relationships

• Uchiha Izumi — Fiancée and closest partner. Mu saves her during the clan massacre and transfers her affection from Itachi to himself with a system card; she later manages and fights for the Void Organization alongside him 2 4 5 44 50.
• Uchiha Itachi — Foster brother and adversary. Mu confronts him after Fugaku and Mikoto's deaths but spares him due to Fugaku's request; they later reunite when Itachi returns to Konoha with Kisame 4 35.
• Uchiha Sasuke — Younger foster brother. Sasuke regards Mu with reverence and inferiority, while Mu watches his training from a distance and refuses to interfere with his path of revenge 31 33 35.
• Uchiha Fugaku and Uchiha Mikoto — Foster parents. Fugaku gives Mu his eyes before dying; Mu later fuses the eyes of both parents to awaken the Eternal Mangekyō Sharingan 3 4.
• Naruto Uzumaki — Junior and informal student. Mu protects Naruto from Mizuki, teaches him a forbidden technique, and becomes a figure Naruto deeply admires 12 13 15 30.
• Hiruzen Sarutobi — Hokage who accepts Mu into ANBU and assigns him to monitor Orochimaru during the Chunin Exams, though he remains wary of Mu's hidden motives 11 14 15.
• Uchiha Obito — Recurring enemy. Mu first stalemates him using copied Kamui, later counters Obito's space-time techniques with his own temporal and spatial powers 2 3 9 47.
• Shimura Danzō — Political enemy who seeks Mu's Sharingan and attempts to assassinate him. Mu destroys Root's ambush force and cripples Danzō after breaking his Izanagi 31 32.
• Orochimaru — Enemy and recurring threat. Mu defeats him during the Konoha Crush, prevents him from taking Sasuke, and later interrupts his fight with Jiraiya and Tsunade 25 26 40.
• Temari — Hidden Sand shinobi who develops a concealed admiration for Mu after witnessing his strength and defense of Konoha 25 28 33.
• Mabui — Hidden Cloud shinobi saved by Mu during the conflict at Konoha's gates; she later visits Konoha while harboring feelings for him 8 33.

Story Role / Major Arcs

Uchiha Clan Massacre

• System activation places Mu at the center of the Uchiha Clan massacre and presents him with a choice over the clan's fate 1.
• Saves Izumi from Obito, briefly matches Kamui through replication, and learns Obito's identity 2 3.
• Awakens the Mangekyō Sharingan after Fugaku and Mikoto are killed, then obtains the Eternal Mangekyō Sharingan by fusing their eyes 4.
• Becomes engaged to Izumi and reaches Initial Shadow level 5.

Konoha Gate Conflict and Forbidden Training

• Helps ignite conflict between Konoha and the other great villages to create an opportunity to obtain the Scroll of Sealing 5 6.
• Absorbs the Three-Tails' chakra, gains Tailed Beast Transformation, and drives the invading alliance into retreat despite damaging Konoha's defenses 8 9.
• Studies forbidden techniques from the Scroll of Sealing and trains with Izumi over the following three years 10.

ANBU and Chunin Exams

• Joins Konoha's ANBU, earns the codename Shadow, and becomes a trusted operative despite Hiruzen's suspicions 11 12 14.
• Protects Naruto during the Scroll of Sealing incident and secretly teaches him a forbidden technique 12 13.
• Defeats the Sound Ninja and later suppresses the Four Sound Ninja during the Chunin Exams 17 23 24.
• Absorbs One-Tail chakra, reaches mid-Kage level, and calms Gaara by suppressing Shukaku 21.

Konoha Crush and Danzō's Downfall

• Defeats Orochimaru in the sealed exam venue and prevents him from claiming Sasuke 25 26.
• Faces the reanimated Hashirama and Tobirama alone, fighting them to a draw before Hiruzen ends the Impure World Reincarnation 28 29 30.
• Survives Root's ambush, destroys its attacking force, and cripples Danzō after exposing his use of stolen Sharingan 31 32.
• Becomes Konoha's principal deterrent and a feared name throughout the ninja world, while refusing formal authority and political rewards 32 33 34.

Void Organization

• Uses his ANBU position to gather intelligence on Konoha's leadership while treating the organization as a temporary base of operations 43.
• Leaves Konoha in person while maintaining incarnations, then establishes the Void Organization with Izumi and surviving Uchiha members or wandering ninja 44.
• Fuses One-Tail and Three-Tails chakra in seclusion, then accelerates Void's campaign to capture tailed beasts before Akatsuki 45 50.
• Pursues the Two-Tails alongside Izumi and confronts Hidan and Kakuzu in the Land of Lightning 50.