Tobirama

Biodata

Feature	Value
Name	Tobirama Senju (扉间) 3 7
Alias(es)	“Little Tobi” — Gamu’s teasing nickname; Second Hokage 7 108
Species/Race	Human 8
Gender	Male 3 7
Affiliation	Senju Clan; later Konohagakure 3 63
Occupation/Role	Shinobi, strategist, ninjutsu researcher; Madara’s assistant under Konoha’s joint leadership, later appointed Second Hokage 14 63 108
Status	Alive; accepts the Hokage appointment, with formal clan and daimyo approval still pending 108
First Appearance	Mentioned in the discussion of Shadow Clones; first appears at the riverside Senju–Uchiha confrontation 2 3

Power Progression

Stage / Realm / Level	Chapter	Notes
Three-seal Water Dragon Bullet learned	7	Already knows the conventional forty-four-seal technique. Under Gamu’s instruction, quickly learns a version requiring only three seals.
Independent Space-Time Ninjutsu under development	46	Announces that he is developing a self-contained spatial technique and promises to teach Gamu once it is ready. Gamu suspects it is an early Flying Thunder God.
Flying Thunder God operational	56	Uses his newly developed technique to transport Gamu, Hikari, and Esdeath to the allied settlement.
Distributed Flying Thunder God mark network	60	Marks left in multiple locations enable long-distance travel, including taking Gamu to the Land of Earth to visit Mu.
Flying Thunder God marks linked with Gamu’s	102	Connects their marks during the Ōtsutsuki emergency, supporting access to the battlefield in another dimension.

Background / History

Childhood and the Clan Feud

Tobirama grows up as a younger son of Senju clan leader Butsuma and the younger brother of Hashirama. He accompanies his father to a confrontation with Uchiha Tajima and Izuna after the adults discover Hashirama and Madara’s secret friendship. Both fathers target the opposing younger son to destabilize their rival. Gamu’s disguised ambush interrupts the battle, and Tobirama mistakenly considers whether other enemy clans arranged the attack 3.

During Gamu’s later visit to the Senju compound, Tobirama repeatedly reminds Hashirama to observe diplomatic etiquette. He escorts Gamu out of the formal meeting and becomes his student after witnessing the three-seal Water Dragon Bullet. Watching Gamu spar with Hashirama reveals their shared preference for deceptive combat, although Gamu’s behavior and reckless summoning experiments alarm him 7 8 9.

The Mine Battle and Ceasefire

Tobirama designs many of the Senju Mine’s defenses, only to confront those same fortifications after the Uchiha capture it. He reluctantly joins Gamu and Hashirama’s rear assault, using a Water Dragon as a midair platform for their improvised launch. During the subsequent confrontation, he fights Izuna and prevents him from attacking Gamu while Gamu gathers senjutsu chakra 14.

The Kaguya Clan’s betrayal forces Tobirama and Izuna to suspend their feud. After Wakanori kills Butsuma and Tajima, Tobirama follows Gamu’s instruction to organize a joint defense and prioritizes his clansmen’s survival. In the aftermath, he tells Izuna that protecting the living can justify setting aside hatred without forgetting their brothers’ deaths 15 16.

War and Konoha’s Founding

Tobirama later plants spies in other nations and anticipates conflict between emerging ninja villages. He initially recommends Gamu as a village leader, valuing his decisiveness, restraint, strength, and ability to reconcile the Senju and Uchiha. Gamu declines and instead proposes shared leadership for Hashirama and Madara 44.

During the invasion by forces from the Lands of Water and Lightning, Tobirama cooperates with Izuna on logistics despite their mutual distrust. His Flying Thunder God rescues Hashirama from Jun’s ambush and lets Hashirama respond across multiple fronts. Tobirama also helps evacuate Uzushiogakure before its destruction; the evacuation prevents casualties 56 57 58.

At Konoha’s founding meeting, Tobirama secures Gamu’s attendance as the Uzumaki representative. The approved arrangement makes Hashirama responsible for foreign affairs and Madara for internal affairs, with Izuna assisting Hashirama and Tobirama assisting Madara 63.

Modernization and Education

Tobirama and Madara organize secret research into the appliances, textbooks, and more than a thousand laptops Gamu brings from another world. Their cooperation extends from village administration into technological development 82.

Tobirama produces an electric light as the first practical invention derived from those materials. He uses Shadow Clones to analyze the information, restricts its distribution, and works so intensely that he neglects food and sleep. At the Ninja Academy’s opening, he agrees with Gamu’s proposal to establish schools for civilian children as well 87.

Ōtsutsuki Attack and Hokage Succession

When the Ōtsutsuki devastate Konoha and capture Mito, Esdeath, and seven tailed beasts, Tobirama coordinates the emergency response. He agrees to sustain Gamu’s dimensional gateway and links their Flying Thunder God marks. After Hashirama and Madara recover with Six Paths power, he helps them reach the battlefield 102 104.

Momoshiki later escapes Tobirama using Flying Thunder God, having retained an absorbed mark as a means of retreat 104 105.

Following Izuna’s decision to retire from frontline duty and Madara’s plan to travel, Madara nominates Tobirama as the next Hokage. Hashirama and Gamu agree. Tobirama initially suspects a prank, then accepts responsibility for managing Konoha 108.

Personality

Tobirama is composed, practical, and attentive to obligations. He regularly corrects Hashirama’s lapses in etiquette and worries about the damage his brother’s sparring can cause. Gamu’s familiarity irritates him, but demonstrated skill quickly earns his respect 7 8 44.

His hostility toward the Uchiha is rooted in clan warfare and the deaths of his brothers. After the mine’s capture, he wants the clan destroyed; after the Kaguya disaster, he accepts that his people’s future matters more than continued revenge. This pragmatism eventually allows him to work efficiently under Madara and accept Madara’s recommendation for Hokage 14 16 82 108.

He enjoys cunning tactics and takes pride in his inventions and defenses. Comparing himself with Hashirama’s overwhelming strength pushes him toward ninjutsu research, although he recognizes that their power gap keeps widening. His dedication later extends to technology, where his caution over information sharing contrasts with his tendency to overwork 8 9 14 87.

Abilities & Skills

Water Release

• Studies Water Release specifically to counter Uchiha Fire Release 7.
• Learns Gamu’s three-seal Water Dragon Bullet, greatly shortening the conventional technique’s preparation 7.
• Uses a Water Dragon as a stepping platform during the mine assault, supporting Hashirama and Gamu’s aerial maneuver 14.

Flying Thunder God and Space-Time Ninjutsu

• Develops Flying Thunder God from his independent spatial research 46 56.
• Transports allies and uses a network of marked locations for long-distance travel 56 60.
• Performs rescues, supports rapid movement between battlefronts, and patrols dangerous territory where others cannot move safely 57 58.
• Links his marks with Gamu’s and helps maintain access to an alternate-dimensional battlefield 102 104.
• An absorbed mark becomes an enemy escape route when Momoshiki uses the technique to retreat 104 105.

Sensory Perception

• Tracks Gamu’s concealed underground movement while Hashirama is distracted by clones 8.
• Detects an incoming attack and warns his companions during the mine operation 14.
• Recognizes Gamu’s returning chakra during a patrol and notices that Esdeath possesses an unfamiliar power without a chakra signature 56.

Deceptive Combat

• Favors clone feints followed by linked ninjutsu attacks 9.
• Particularly enjoys striking when an opponent believes victory is secure and lowers their guard 9.
• Holds Izuna off while Gamu prepares Sage Mode, preventing interference with an ally’s vulnerable preparation period 14.

Strategy, Intelligence, and Research

• Designs mine fortifications, including hidden explosive tags; their effectiveness becomes a liability once the Uchiha occupy the site 14.
• Maintains spies abroad and considers the military consequences of village formation 44.
• Coordinates wartime logistics, evacuation, and emergency defense 56 58 102.
• Uses Shadow Clones to study imported scientific material and develops a functioning electric light 87.

Equipment / Weapons / Items

• Sword — Wields a sword during his confrontation with Izuna; both sheath their weapons when the Kaguya threat forces a temporary truce 14.
• Sage Staff — Borrowed from Gamu to safeguard Hashirama during Sage Mode training 9.
• Explosive tags — Incorporates concealed tags into the Senju Mine’s defenses 14.
• Imported research materials — Studies the textbooks and technology Gamu supplies to Konoha 82 87.

Relationships

• Hashirama Senju — Older brother. Tobirama manages obligations Hashirama neglects, safeguards his training, and rescues him during Jun’s ambush 7 9 10 57.
• Butsuma Senju — Father and former clan leader. Tobirama accompanies him into the riverside confrontation and later witnesses the crisis surrounding his death 3 15.
• Uzumaki Gamu — Ninjutsu teacher, collaborator, and frequent source of exasperation. Tobirama admires his tactical skill, considers him suitable for village leadership, and supports his travel and research 7 9 44 60 87.
• Uchiha Izuna — Enemy turned colleague. Their rivalry persists, but they cooperate during emergencies and deliberately avoid letting personal distrust undermine their clans’ alliance 14 15 16 56.
• Madara Uchiha — Former opposing-clan leader, later Hokage and administrative partner. Their effective cooperation culminates in Madara proposing Tobirama as his successor 63 82 108.
• Mito Uzumaki — Sister-in-law through her marriage to Hashirama 46.
• Uchiha Hikari / Nanashi — Views her freedom cautiously because of her history with the Senju. Accepts Gamu’s decision to free her but threatens to kill her if she seeks revenge against his clan 44.

Notable Quotes

“Whatever my brother thinks, I'll never forget our brothers' deaths. But... if setting that hatred aside gives our clansmen better lives, it's not impossible!” 16

“Rather than the dead, who can no longer feel anything, it's better to give more thought to the living!” 16

Trivia

• The “copyright” joke changes the invention timeline: the narration identifies Shadow Clone as a technique normally invented by Tobirama, but Gamu recreates it while Tobirama is still a child and jokingly claims ownership 2.
• He indirectly inspires Gamu before they collaborate: Gamu models many of his tactics on Tobirama’s anime combat methods, making Tobirama a mentor in a sense unknown to him 20.
• He researches Sage Mode without being shown mastering it: Tobirama knows the Three Great Sage Regions from ancient texts and secretly listens to Gamu’s explanation of Hashirama’s training 8 9.