Fugaku

Biodata

Power Progression

Background / History

Clan Leadership and Family

Fugaku had just succeeded as Uchiha Clan Head in Konoha Year 38 when Mikoto gave birth to their first son, Seiichi. Seeing the newborn awaken his Sharingan immediately, Fugaku regarded him as the clan’s future hope. Their second son, Itachi, was born in Konoha Year 43 2.

Early in his leadership, Fugaku tried to remain between the Uchiha Clan and Konoha’s administration rather than firmly supporting either side. This left him with little influence inside the clan and dissatisfied parties on both sides. He initially encouraged Seiichi to attend the Ninja Academy, suggesting that he could at least make friends there, but his son refused 3.

Supporting Seiichi’s Research

Fugaku helped Seiichi obtain information about kekkei genkai and purchased scientific equipment for his laboratory. Because Seiichi could not yet explain his research, the family paid the costs privately, bringing Fugaku close to bankruptcy. Sales of Seiichi’s nutrient solutions subsequently restored his wealth beyond its previous level 2 4 5.

When Seiichi announced that his bloodline-restoration research had succeeded, Fugaku secured the family’s secret chamber with guards and three barriers. He then revealed his Mangekyō Sharingan and participated in an ocular-power comparison. Using ninety percent of his own eye power, he confirmed that Seiichi’s restored Three-Tomoe Sharingan had already reached Mangekyō-level ocular strength 5.

Third Shinobi World War

Fugaku organized the clan’s required deployment of 1,000 shinobi, including 500 jonin. He accepted the quota because it applied to every clan and appointed Uchiha Yunhai to command the force, explicitly instructing him to protect both himself and their clansmen 7.

As casualties mounted, Fugaku agreed to provide equal allowances to the families of all deployed fighters while withholding the list of the dead until the war ended. He later joined Seiichi and the elders in welcoming the survivors home: only 626 of the original 1,000 returned 9 23.

Break with the Hokage Faction

During Seiichi’s public confrontation with Hiruzen Sarutobi, Fugaku refused the Hokage’s request to simply take his son home. He instead upheld Seiichi’s standing as Young Clan Leader and an official Military Police Force adviser. His refusal helped prevent Hiruzen from ending the dispute without addressing Seiichi’s accusations 15 16.

Fugaku subsequently participated in the “Artificial God” project, receiving the Key alongside Mikoto, Itachi, and Shisui. Although he warned Seiichi against provoking Hiruzen’s faction too aggressively, he later promised that the family and clan would stand behind him 18 20 23.

Transfer of Authority and Clan Reorganization

Fugaku increasingly considered himself unsuited to clan leadership. After learning the extent of Seiichi’s strength, he deliberately promoted his son’s authority, convinced that Seiichi possessed both the power and intelligence to improve the clan’s future. He also revealed his own Mangekyō Sharingan to the elders after Seiichi demonstrated the Eternal Mangekyō 24.

Following Seiichi’s public display of Perfect Susanoo, Fugaku accompanied him to announce the clan’s withdrawal from shinobi service. The Uchiha relinquished the Military Police Force and chose to become a merchant clan. Fugaku asked Konoha’s leadership to coexist peacefully with them rather than create further difficulties 39.

In the subsequent internal reorganization, Fugaku became captain of the Fifth Division, responsible for sealing. Its roster included nine other full members and ninety candidates. He continued coordinating the clan’s development and remained its formal head even after most practical authority had passed to Seiichi 40 41 45 50.

Personality

Fugaku is cautious in political disputes, initially attempting compromise between village and clan. His restraint does not prevent him from openly defending Seiichi’s authority when Hiruzen tries to dismiss it. Even after committing to his son’s position, he remains conscious of the dangers of provoking Konoha’s leadership 3 15 20.

He is affectionate toward his family and openly proud of his children’s potential. He anxiously paces during Itachi’s birth, makes time to return home for Seiichi’s birthday lunch, and encourages his sons to train without becoming complacent. During the Susanoo tests, he immediately goes to support Mikoto after her exertion 2 13 21 23.

Leadership increasingly becomes a burden rather than a source of prestige for him. As Seiichi takes over administrative responsibilities, Fugaku becomes noticeably happier. A harmonious household, improving strength, and fewer clan troubles transform the formerly stern “Wicked Eye” into a smiling, approachable figure 24 30.

Abilities & Skills

Mangekyō Sharingan

Fugaku’s Mangekyō pattern resembles a curved triangular shuriken accompanied by three small black dots 5.

• Ocular power: Provides the benchmark used to confirm the success of Seiichi’s initial bloodline restoration 5.
• Resistance to genjutsu: Before Seiichi’s later enhancements, Fugaku is the only person in Konoha whom Seiichi knows for certain can remain unaffected by Genjutsu: Ordinary Villager, which requires superior spiritual power to resist 9.
• Documented stage: He is identified as a Mangekyō wielder, distinct from Seiichi’s Eternal Mangekyō 24.

Future Sight

Fugaku’s left Mangekyō eye grants Future Sight. Its range, duration, and activation conditions are not explained in his account to Seiichi 19.

Heart-Questioning Genjutsu

His right eye produces a mental illusion that allows its target to understand their own heart and discover what they truly want 19.

• Restraint: Fugaku primarily uses it to immobilize opponents 19 20.
• Combat record: Shortly after awakening his Mangekyō, he held Kirigakure’s Mizukage’s Aide motionless for thirty seconds and killed him 20.
• Limit: Fugaku cannot control the conclusion reached by the target 19.
• Precaution: Seiichi advises him to keep using it as a restraining technique and not cast it on their own people 19 20.

Susanoo

Fugaku manifests an extremely dark blackish-red Susanoo. During his first test, it reaches the fourth stage: a complete body with legs, standing slightly over 100 meters tall 21.

• Naginata: Delivers destructive broad swings, though Fugaku initially lacks experience handling a weapon of that size 21.
• Explosive projectiles: Carries four-pointed throwing weapons at its waist. Fugaku uses elaborate curved throws before detonating them against a mountain 21 22.
• Mobility: Moves substantially better than the third-stage form 22.
• Defensive trade-off: Lacks the third stage’s tengu armor and cannot stop some highly penetrating A-rank ninjutsu 22.

Sealing and Barriers

Fugaku can establish multiple privacy barriers and later commands the clan’s sealing specialists 5 40.

• Places three successive barriers around the family’s secret chamber before discussing Seiichi’s research 5.
• Leads the Fifth Division, the Sealing Squad 40 41.

Relationships

• Mikoto Uchiha — Wife and trusted confidante. They hear Seiichi’s research findings together, undergo the Key treatment, and participate in the family’s Susanoo tests. Mikoto is expecting another child later in the story 5 18 21 30.
• Uchiha Seiichi / Shengyi — Eldest son and intended successor. Fugaku funds his research, supports his political authority, and gradually entrusts him with most clan leadership duties 2 4 15 24 50.
• Itachi Uchiha — Second son. Fugaku names him at birth and later encourages him to develop his strength and awaken the Mangekyō Sharingan 2 21.
• Uchiha Yunhai — Wartime commander appointed by Fugaku to lead the clan’s deployment during the Third Shinobi World War 7.
• Hiruzen Sarutobi — Village leader with whom Fugaku’s relationship deteriorates from attempted accommodation to open resistance. Their eventual agreement removes the Uchiha from shinobi service rather than placing the clan under greater village authority 3 15 39.

Trivia

• An author’s note explicitly moves Fugaku’s Mangekyō awakening from the Third Shinobi World War to the Second Shinobi World War. It also establishes that Fugaku, Shisui, and Itachi do not participate in the Third War in this version of events 5.
• Seiichi suspects that Heart-Questioning Genjutsu could explain Fugaku’s conduct in the original story’s Uchiha massacre. This is Seiichi’s speculation about that story, not an event shown in the novel’s current timeline 19.