Kagami Uchiha

Biodata

Feature	Value
Name	Kagami Uchiha (宇智波镜)
Gender	Male
Age	Eighteen at his introduction and Hokage inauguration 1 26
Affiliation	Konohagakure; Uchiha Clan 1 62
Occupation/Role	Third Hokage; Uchiha clan leader; Ninja Academy principal; formerly an elite jōnin in Tobirama Senju’s Shadow Guard 1 14 19 62
Status	Alive and serving as Hokage in the latest supplied chapter 99
First Appearance	Chapter 1, “Very well, Danzo. You'll cover our retreat.” 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Elite jōnin; Three-Tomoe Sharingan	1	Already a recognized elite jōnin at eighteen. His Sharingan tracks chakra disturbances around the retreating party.
Mangekyō Sharingan	1 3	First displayed to Danzō in Chapter 1. Chapter 3 attributes its awakening to seeing Danzō lose his arm while protecting him.
Third-form Susanoo	2	Expands his initial upper-body manifestation into a fleshed-out giant with a long sword and spikes. Defeats Ginkaku and eliminates the remaining pursuers with Yasaka Magatama, but leaves Kagami exhausted and bleeding from the eyes.
Kage-level power confirmed	19	His oppressive aura is explicitly described as Kage-level during the reform assembly.
Hashirama-cell-enhanced body; near-Eternal Mangekyō; sustained Perfect Susanoo	31	Over five years, receives a perfectly compatible transplant. Ame-no-Minaka evolves to purify his ocular power, removing deterioration and bringing his original eyes within one final transformation of Eternal Mangekyō. Can sustain Perfect Susanoo for long periods.
Legendary level, beyond Kage	31	Explicitly surpasses the Kage-level boundary. The aged, reclusive Madara is identified as one of the few living shinobi who could confront him directly.
Eternal Mangekyō Sharingan; Wood Release	84	His eyes have completed their evolution through Ame-no-Minaka. Hashirama’s cells also grant Wood Release; he has mastered its ninjutsu except the senjutsu-dependent True Several Thousand Hands.

Background / History

Previous Life and Foreknowledge

Kagami remembers a previous life in which he knew the original story of the shinobi world and read discussions about its powers. By eighteen, he has spent eighteen years in this world, driven by the desire to survive and obtain the strongest power. His knowledge includes the Uchiha’s future destruction, Sakumo’s tragic fate, and the eventual fall of the Land of Whirlpools 5 20 29 63.

He initially uses this knowledge to hint to Danzō about the retreat crisis. When Danzō volunteers as the decoy and Tobirama accepts, Kagami realizes that his intervention has placed his closest friend in mortal danger rather than producing the outcome he expected 1.

Land of Lightning Ambush

Kagami stays with Danzō to cover Tobirama’s retreat after the failed peace talks. Against Ginkaku’s pursuing force, he combines swordsmanship and Sharingan genjutsu before escalating to Susanoo. Danzō loses his right arm protecting him; Kagami subsequently kills Ginkaku, destroys the remaining enemies, and bandages Danzō’s wound despite his own exhaustion 2.

The pair return in time to save Tobirama. Kagami holds off Kinkaku with Susanoo and knocks him down when his chakra falters, allowing Tobirama to deliver the killing blow with Flying Thunder God. Although Hiruzen has reported Kagami and Danzō dead, all three return to Konoha three days later 3 4 5.

Uchiha Politics and Hokage Succession

After returning, Kagami confronts Uchiha Setsuna’s coup and assassination proposals. He rejects both clan factionalism and taking Konoha by force, arguing that the Uchiha should improve their reputation and seek the Hokage office legitimately. Revealing his Mangekyō wins the elders’ attention, but he warns them that excessive use could blind him 6.

Tobirama considers Kagami a possible successor because his village loyalty and standing within the Uchiha could help reconcile the clan with Konoha. Kagami reinforces that trust by declaring that village safety must prevail if clan and village interests conflict 7 8.

On his deathbed, Tobirama names Kagami Third Hokage and orders his other students to support him. Kagami begins governing after the funeral, obtains the Fire Daimyo’s recognition, and holds his public succession ceremony at eighteen 14 15 23 26.

Later Clan Leadership and War

Uchiha Rei eventually asks Kagami to succeed him as clan head and entrusts his orphaned grandson, Fugaku, to his care. Kagami accepts responsibility for both the clan and Fugaku’s upbringing, intending to prevent the Uchiha’s future internal violence and destruction 61 62.

As the Land of Whirlpools faces invasion, Kagami prepares an eastern rescue force rather than ordering immediate intervention. Konoha later brings dozens of Uzumaki survivors to the village. In response to attacks on Konoha’s allies, he places the village on a full war footing against Iwagakure, Kirigakure, and Kumogakure 72 84.

Appearance

• Build and features: Tall and slender, with short black hair, a handsome, gentle face, and youthful softness around the eyes at eighteen 10.
• Eyes: Three-Tomoe Sharingan that transform into an intricate Mangekyō pattern; the exact design is not specified in the supplied passages 1 33.
• Clothing: Wears a neat Konoha jōnin uniform before succession, plain black clothes at an early governing assembly, and Hokage robes in office. At home, he also wears standard Uchiha attire 10 17 61.
• Susanoo: Pale purple or violet, with blade-bearing arms, pronounced bone armor, and a simple facial mask in its later manifestation 2 33.

Personality

Kagami is composed under pressure and considerate toward comrades and younger shinobi. He treats Danzō’s injury while barely able to stand himself, comforts Tsunade through bereavement, and recognizes researchers whose work receives less acclaim than battlefield service 2 15 20.

His warmth coexists with considerable ambition. He wants the Hokage’s authority because controlling the village’s rules offers a way to protect the Uchiha and alter their future. He opposes clan extremism, but does not hesitate to intimidate an unruly assembly or use overwhelming power to impose his decisions 6 9 18 19.

As Hokage, he combines public welfare with coercive security measures. Medical care, education, and support for bereaved families are central to his reforms, while Root carries out clandestine violence under his authority. He also intimidates the Nine-Tails into compliance and uses economic pressure against Sunagakure, while recognizing that destabilizing it too severely could provoke war 16 17 31 62 66.

His teaching is demanding rather than merely reassuring. He deliberately confronts his students with fear and defeat, then explains that the purpose is to expose their remaining weaknesses—not extinguish their confidence 33 34.

Abilities & Skills

Sharingan and Genjutsu

• Tracks chakra disturbances with his Three-Tomoe Sharingan 1.
• Briefly traps Ginkaku in genjutsu through eye contact, creating an opening to slash his chest 2.
• Subdues the Nine-Tails with a single Mangekyō glance inside Mito’s sealed mental space 66.
• His ability to control jinchūriki alarms the Third Raikage, who fears that Kumogakure’s own Tailed Beasts could be turned against it 89.
• Ordinary Mangekyō use initially risks exhaustion, ocular damage, and blindness; his later cell transplant and Ame-no-Minaka transformation remove that deterioration 2 6 31.

Katsuyu Mikoto

His left-eye Mangekyō ability accelerates division and healing in his own cells 20.

• Provides self-regeneration comparable in principle to Hashirama’s healing 20.
• Works only on Kagami, not on other people 20.
• Severe injuries require enormous ocular expenditure; frequent use initially hastens blindness 20.

Ame-no-Minaka

His right-eye Mangekyō ability seizes and fuses chakra from different sources, refining the resulting energy and increasing its fundamental quality 20.

• Breaks down barriers between different powers 20.
• Initially has a finite capacity and risks backlash when incompatible properties are forcibly combined 20.
• Initially consumes ocular power during sustained use 20.
• After years of support from Hashirama’s vitality, purifies his Uchiha ocular power instead of degrading it 31.
• Enables his original eyes to evolve toward—and eventually reach—Eternal Mangekyō without another person’s eye transplant 31 84.
• Kagami considers it a possible route toward the Rinnegan; no Rinnegan awakening is documented in the supplied context 20.

Susanoo

• Creates a pale-purple chakra giant equipped with blades, progressing from an upper-body manifestation to its third form during the Ginkaku battle 2.
• Uses Yasaka Magatama as an explosive ranged attack that kills the remaining Kumogakure pursuers 2.
• Shields Tobirama and engages Kinkaku in direct combat 3.
• Can sustain Perfect Susanoo for long periods after his Hashirama-cell transplant 31.
• Overwhelms Sakumo, Tsunade, Jiraiya, Orochimaru, and their summoned beasts during a training test; a single slash disrupts the summons and knocks the students across the field 34.

Hashirama Cells and Wood Release

• Receives a perfectly compatible transplant without rejection, loss of control, or assimilation backlash 31.
• Unites Uchiha ocular power with Senju vitality, supporting prolonged Mangekyō use 31.
• Gains Wood Release and masters its ninjutsu except Sage Art: Wood Release: True Several Thousand Hands, which requires senjutsu 84.
• Believes combining a wooden giant with Susanoo could reproduce the principle of Madara’s Beast-Clad Susanoo; this is presented as a possible combination, not a demonstrated attack 84.

Elemental Ninjutsu and Close Combat

• Fire Release: Great Fireball Technique — Produces a fireball dozens of meters across 2 33.
• Earth Release: Earth Flow Rampart — Raises an enormous wall that blocks Jiraiya and Orochimaru’s combined fire-and-wind attack 33.
• Lightning Release: Lightning Flash Quick Step — Stimulates his body to evade Tsunade’s powerful kick 33.
• Swordsmanship and taijutsu — Kills with a ninja blade, parries Sakumo’s lightning-coated sword using a kunai, and counters with a forceful kick 2 33.
• Technical instruction — Corrects Sakumo’s stance, force generation, and use of his waist and spine, immediately improving his cuts and thrusts 29.
• Chakra control — His exceptionally refined control contributes to the successful Hashirama-cell transplant 31.

Strategy, Diplomacy, and Foreknowledge

• Advocates compensation and a Memorial Stone visit during negotiations with Kumogakure, while arguing against an immediate return to war 8.
• Gains the Fire Daimyo’s recognition and financial support through respectful diplomacy 23 26.
• Anticipates the threat to Uzumaki sealing knowledge and prepares warnings, exchanges, border readiness, and rescue measures 63 69 72.
• Recognizes future figures and disasters through memories of his previous life. His statement that his eyes have “seen the future” does not establish a separate precognitive ocular technique 6 20 29 63.

Leadership and Reforms

Area	Measures
Covert security	Creates Root under Hiruzen for internal security, assassinations, and intelligence gathering. Members are expected to act without personal attachments 16.
Intelligence and foreign affairs	Centralizes Anbu intelligence, patrol reports, and clan informants under Danzō; later also appoints him Foreign Affairs Minister 19 28.
Medicine	Establishes a unified Medical Department under Koharu, expands training, recruits promising Academy students, and trials squads with medical specialists 17 18.
Education	Requires all school-age children to attend the Ninja Academy, permits supplementary clan instruction, restricts unauthorized early graduation and unsuitable missions for children under twelve, and appoints himself principal 18 19.
Policing	Ends the Uchiha monopoly on the Military Police Force and opens recruitment to qualified ninja from any background under common standards 19.
Military organization	Divides roughly ten thousand active ninja into five permanent corps: four for border defense and one for village defense and mobile support 19.
Research	Revives Tobirama’s secret cell research and supports Hiruko’s bloodline studies. Warns against casually using living people as experimental subjects 19 20 67.
Merit-based appointments	Selects a Shadow Guard spanning the Uchiha, Hyuga, Senju, and commoner backgrounds. Sets village loyalty above the Hokage and clan 21.
Administrative balance	Makes Hiruzen Hokage Advisor; appoints Shikata Chief Advisor and Finance head; gives Elder seats to Tokuma Hyuga, Uchiha Setsuna, and Senju Bu 28.
Funding and welfare	Secures a ten-percent annual funding increase and border-resource tax revenue. Five years later, the Daimyo’s allocation reaches three billion ryō, supporting survivor allowances, shinobi stipends, medical care, and rehabilitation 26 31.
Next-generation leadership	Treats developing young shinobi and identifying qualified successors as essential Hokage duties. Teaches Academy students that the office means service and protection, not merely recognition 98 99.

Equipment / Weapons / Items

• Ninja blade — Used against Kumogakure pursuers and to wound Ginkaku 2.
• Kunai — Drawn from his pouch to intercept Sakumo’s lightning-coated sword 33.
• Hokage robe and cloak — Wears the robe as Hokage; gives Tsunade his cloak during Tobirama’s rainy funeral 15 61.
• White Light Chakra Sabre — Commissioned for Sakumo, not wielded by Kagami. Made by a leading Land of Iron swordsmith from rare Chakra-forged Gold, taking more than a year to complete 32.

Relationships

• Tobirama Senju — Teacher, commander, and predecessor. Kagami saves him during the retreat; Tobirama subsequently entrusts him with Konoha and reconsiders his prejudice toward the Uchiha 3 13 14.
• Shimura Danzō — Closest friend and confidant since youth. Their mutual protection in the ambush deepens the bond; Kagami later supports restoring his arm and entrusts him with intelligence and diplomacy 1 2 16 28 31.
• Hiruzen Sarutobi — Fellow student, former succession candidate, Root commander, and Hokage Advisor. Kagami publicly defends his capacity to grow beyond past failures; Hiruzen also retains Tobirama’s private charge to act if the Uchiha threaten Konoha 14 16 28.
• Tsunade — Admirer and trainee who calls him “Big Brother Kagami.” He comforts her through family losses and treats her with patient, older-brother-like care; she openly expresses affection for him 7 15 32 85.
• Hatake Sakumo — Personal apprentice with a father-son-like attachment to Kagami. Receives five years of training and a specially commissioned sword, and later serves in the eastern rescue deployment 29 32 72.
• Jiraiya and Orochimaru — Young shinobi he leads on a C-rank mission and later trains alongside Tsunade and Sakumo. Orochimaru is especially fascinated by his Susanoo 11 32 34.
• Mito Uzumaki — Senior supporter who affirms his legitimacy but declines his offer to become Hokage Advisor. Allows him to meet the Nine-Tails within her seal 17 66.
• Uchiha Rei — Former clan head who chooses Kagami as his successor and entrusts Fugaku’s upbringing to him 61 62.
• Uchiha Fugaku — Young ward and pupil. Kagami promises to teach him clan loyalty, village responsibility, and principles that could avert the Uchiha’s future tragedies 62.
• Uchiha Setsuna — Initially a hostile extremist whom Kagami confronts. Later supports Kagami’s authority and becomes an Elder, though police reform leaves him questioning Kagami’s loyalty to the clan 6 18 19 28.
• Shikata Nara — Chief Advisor and Finance head. Provides practical counsel on diplomacy, resources, Sunagakure’s financial crisis, and protecting the Uzumaki 28 62 63.
• Uchiha Tsukiyama, Hyuga Shizuya, Senju Genichi, and Hayama Shirakumo — Personal Shadow Guard, selected for complementary abilities and varied backgrounds. Kagami promises protection if their clans mistreat them for serving the village 21.
• Hiruko — Researcher whose talent Kagami recognizes and cultivates, while insisting on caution in human-cell modification 20 67.
• Might Duy — Overlooked shinobi whom Kagami supports with supplies and encouragement rather than taking as an apprentice. His later improved Hashirama-cell fusion enables injury-free use of the Seventh Gate 67 84.
• Soto Uzumaki and the Uzumaki Clan — Allied elder and people whom Kagami welcomes with protection, covered expenses, and reserved land, while preparing for the danger to their homeland 69 72.
• Fire Daimyo — Recognizes his succession and becomes a reliable source of increased funding through Kagami’s repeated diplomatic visits 23 31.
• Third Raikage A — Admires Kagami’s youth and composure but regards his strength and Tailed Beast control as strategic threats to Kumogakure 10 15 89.
• Madara Uchiha — Watches Kagami’s rise with interest. Eventually judges a direct confrontation unwise in his aged condition, while Kagami grows confident that he can face even Rinnegan-equipped Madara 11 73 98.
• Kushina Uzumaki and Minato Namikaze — Academy students whose Hokage ambitions Kagami encourages, reframing their dreams around protecting the next generation 99.

Notable Quotes

“The Uchiha Clan is my blood. It is the root I can never sever. But Konoha is the home I swore to protect as a ninja.” 8

“Konoha's next generation is its future. They are not weapons for the great ninja clans to hoard, nor bargaining chips for those in power to hold on to their positions.” 19

“Remember, everyone lives inside the cage of their own understanding and calls it reality. Understanding is a hazy thing.” 6

Trivia

• Kakuzu accepts a sixty-million-ryō assassination contract against Kagami and ambushes his party during its return from the Fire capital. The supplied account ends with Kagami manifesting Susanoo, without documenting the fight’s resolution 24.
• At his first audience with the Fire Daimyo, Kagami openly admits that he falls short of Hashirama and Madara, while considering himself competitive with the other villages’ Kage 23.
• He prepares a New Year’s Eve meal at home with practiced ease while Sakumo waits in the living room 71.