Biodata
| Feature | Value |
|---|---|
| Name | Uchiha Izumi (宇智波泉) 1 |
| Species/Race | Human; of Uchiha and civilian-ninja parentage 1 |
| Gender | Female 1 |
| Affiliation | Uchiha Clan; Konoha Military Police Force; Absolute Justice 1 39 83 |
| Occupation/Role | Military Police Force trainee and Uchiha Chisen’s subordinate; later a prominent supporter of Absolute Justice 39 127 |
| First Appearance | Chapter 1 |
Power Progression
| Stage / Realm / Level | Chapter | Notes |
|---|---|---|
| Three-Tomoe Sharingan awakened | 15 19 | Awakened at age five after witnessing her father’s death during Nine-Tails Night. Initially, her low chakra reserves could not sustain its use for long; she passed out after using it in battle 19. |
| First justice-related gains | 27 59 | After her first killing, gained a chakra increase and the “Dog Training” skill. She later noticed another increase after killing a Root operative 27 59. |
| Major chakra enhancement and evil perception | 101 102 | Killing Shimura Danzō brought a substantial chakra increase and the ability to see others’ evil deeds. She subsequently saw text describing Itachi’s future actions 101 102. |
| Approximately Special Jōnin-level combat ability | 106 | Her improved physical abilities and Three-Tomoe Sharingan let her pressure experienced Uchiha opponents, though Chisen had to intervene when she faced three at once 106. |
Background and History
Izumi lived outside the Uchiha Clan until Nine-Tails Night. Her father, a civilian ninja whose surname she had used, died protecting her; her Uchiha mother then brought her into the clan and gave Izumi her surname. Izumi struggled to fit in with other children her age 1 53.
At twelve, she applied to the Konoha Military Police Force and chose Chisen as her examiner because their names sounded similar. She learned only afterward that he was notorious for his harsh assessments. Her training exposed her to murder investigations and violent enforcement, initially leaving her frightened and physically sickened by what she saw 1 2 4.
Izumi gradually adopted Chisen’s Absolute Justice as her own path. She defended his actions before fellow Uchiha, assisted his investigations, and came to regard punishing evil as the way she could contribute to Konoha. Their work took her from recording evidence and questioning suspects to confronting and killing criminals herself 36 39 40 43 59.
Her loyalty also drew her into clan politics. She walked out of Setsuna’s leadership meeting, fought alongside Chisen against Setsuna’s supporters, and later publicly challenged Fugaku’s conduct as clan head and police captain. Izumi led the clan members who pressed Fugaku to resign from both positions 127 129 166 168.
Personality
Izumi begins as an earnest but easily intimidated trainee: she memorizes the Police Force handbook, worries about disappointing Chisen, and hesitates when confronted with cruelty. Experience makes her more outspoken, particularly when she believes an innocent person needs protection or an authority figure has failed to uphold justice 2 6 36 102 166.
Her trust in Chisen becomes deep enough that she accepts his judgments of criminals, even while worrying that killing might change her. She is nevertheless willing to argue from her own convictions: she stands between Sasuke and the stronger Itachi, and later challenges Root leader Utatane Koharu to justify her actions under Konoha’s rules 59 102 160.
Abilities and Skills
Three-Tomoe Sharingan
- Izumi uses its perception in sword combat and can place an opponent under Sharingan genjutsu through eye contact 106 144.
- The eyes awakened long before her chakra reserves could support sustained use; prolonged use initially exhausted her 19.
- Against Itachi, she could see the trajectory of a kick but could not move quickly enough to evade it 144.
Perception of evil
- After killing Danzō, Izumi gained the ability to see others’ evil deeds. She observes information about Itachi’s future actions and later says she can perceive both past and future evil 101 102 138 144.
- She uses the ability to identify criminals marked by “red names” and says Chisen bestowed the power on her 106 217.
Combat and police work
- Izumi fights with a ninja sword; her Sharingan genjutsu nearly lets her kill Uchiha Hayata before his allies intervene 106.
- She studies police procedure, retrieves missing-person records, identifies potential victims, and proposes checking their relatives, finances, and inheritance 6 40.
- She survives a Kirigakure ambush by using a substitution log in place of her body 205.
Equipment and Items
- Ninja sword — her principal documented weapon 59 106 144.
- Fire-Sealing Formula Scroll — given to her by Chisen after Itachi’s death; it contains Itachi’s Amaterasu flames for use as a trump card 146.
- Notebook — used to record names and instructions while accompanying Chisen 24.
Relationships
- Uchiha Chisen — examiner, mentor, and senior whose Absolute Justice Izumi adopts; she becomes one of his most visible supporters 1 39 127.
- Uchiha Itachi — once her only close friend in the clan. His stated willingness to destroy the Uchiha ends their friendship; she later fights off his ambush 39 53 144.
- Uchiha Sasuke — Izumi shields him from Itachi and tends his scrapes after an attack on the Uchiha compound 102 110.
- Anko Mitarashi — fellow supporter of Absolute Justice whom Izumi protects when Koharu’s Root forces confront her 129 160.
- Uchiha Fugaku — clan head whom Izumi initially fears and respects, then openly condemns and helps force from office 6 166 168.
- Kijiro — Chisen’s ninja cat, who calls Izumi a “newbie”; the two work together and escape the aftermath of Chisen’s attack in Kirigakure 34 207.
Notable Quotes
“Purging the ‘evil’ of the Shinobi World through the means of [Absolute Justice]—that is the Nindo of Uchiha Izumi!” 39
“If justice does not stand before the innocent, then in this twisted, diseased Shinobi World, who else would be willing to sacrifice themselves to protect them?” 102