Sengoku

Biodata

Background and History

Sengoku was Fleet Admiral when Garp brought his grandson Haku to Marine Headquarters as an Admiral candidate. Though Zephyr and Garp had praised Haku, Sengoku initially objected to Akainu taking over the evaluation, believing Aokiji should handle it instead. He also considered Haku’s age and lack of military experience obstacles to an immediate promotion. 1 5

After Haku overwhelmingly defeated Akainu, Sengoku accepted that his combat ability met Admiral standards. Steel Bone Kong’s warning that the Marines could lose such a rare talent convinced Sengoku to secure Haku’s loyalty; he ultimately presided over Haku’s appointment as the fourth Marine Admiral, “Purple Blade.” 5 6 9

As Fleet Admiral, Sengoku repeatedly handled the political fallout of Haku’s actions. He sought to contain the Sabaody incident involving Saint Charlos, transferred Haku to G5, and reacted with alarm when Haku executed nearly two-thirds of the branch’s Marines. He nevertheless continued relying on Haku for major operations, including the investigation of Vergo and deployments against threats in the New World. 23 27 28 33

The Five Elders later ordered Sengoku to prepare Ace’s execution and the destruction of the Whitebeard Pirates. Although he recognized the risks to the Marines and the world’s balance, Sengoku complied; he was also instructed to monitor Garp and Haku because of their connection to Ace. 201

Following the Summit War, Sengoku resigned as Fleet Admiral and recommended Aokiji as his successor. Kong accepted his resignation but requested that Sengoku and Garp remain in the Marines to train recruits. Akainu’s eventual promotion and actions against Haku left Sengoku regretful and increasingly critical of the direction of the Marines. 276 331 509

Appearance

Sengoku is an older Marine officer recognized by his toad-like glasses. In his later retirement, he has white hair and a white beard. 1 331

• Wears distinctive round, toad-like glasses. 1
• Has visibly aged by the period following Haku’s fall from the Marines. 331
• Can emit golden light and enlarge his body in combat. 267 490

Personality

Sengoku is a cautious and politically aware commander. He weighs the military consequences of every major decision, particularly when Haku’s victories risk provoking the Four Emperors or the World Government. He often listens to Tsuru, Akainu, and Aokiji before deciding on a course of action rather than acting rashly. 48

Despite his sternness, Sengoku is personally invested in Haku’s future. He argued that Haku needed experience before becoming an Admiral, stayed to supervise Haku’s first Hollow Mask test, and repeatedly tried to protect him from the consequences of his confrontations with the World Government. 5 9 23

His relationship with Haku grows increasingly strained as Haku becomes disillusioned with the Marines. Sengoku understands much of Haku’s criticism of Akainu and the World Government, but remains bound by his loyalty to the Marines and his belief that their collapse would endanger the world. 336 509

Abilities & Skills

Combat Capability

Sengoku remains a formidable combatant even after retiring as Fleet Admiral.

• Can enlarge his body while radiating golden light. 267 490
• Pushed his Adamantine Body to its limit while attempting to reach and restrain Haku at Sabaody Archipelago. 491
• Joined Steel Bone Kong in battling Haku at New Marineford, using his transformed body to restrict Haku’s escape routes. 513 514
• Was considered valuable enough for Kong to call into battle against Haku despite his retirement. 513

Command and Strategic Judgment

Sengoku’s principal strength is his ability to manage Marine operations amid pressure from pirates, fellow officers, and the World Government.

• Evaluated Haku’s suitability for the Admiral position beyond raw combat strength, considering experience, influence, and potential. 5
• Kept Vergo alive and transferred him to Punk Hazard after learning he was a Doflamingo spy, intending to preserve his intelligence value. 28
• Weighed competing proposals from Tsuru, Akainu, and Aokiji before deciding how the Marines should respond to Haku’s victory over Kaido. 48
• Directed Aokiji to Whole Cake Island when Haku went missing in Four Emperor territory. 112
• Organized the operation surrounding Ace’s execution under direct orders from the Five Elders. 201

Relationships

• Monkey D. Garp — Longtime friend and fellow Marine. Sengoku frequently bickers with Garp, but trusts his judgment and accepts his pride in Haku. 5 6 276
• Portgas D. Haku — Initially regards Haku as a gifted but inexperienced candidate; later promotes and repeatedly deploys him as an Admiral. Sengoku grows concerned as Haku turns against the World Government and clashes with the Marines. 5 9 93 509
• Vice Admiral Tsuru — Trusted longtime colleague and strategic adviser. Tsuru regularly moderates Sengoku’s disputes with Garp and helps him assess sensitive decisions involving Haku. 28 48 509
• Sakazuki (Akainu) — Subordinate during Sengoku’s tenure and later his successor as Fleet Admiral. Sengoku becomes deeply disappointed in Akainu’s methods and his cooperation with the World Government against Haku. 1 276 331 509
• Kuzan (Aokiji) — Sengoku originally preferred Aokiji to assess Haku and later recommended him as Fleet Admiral. He also sends Aokiji to intervene when Haku enters Whole Cake Island. 1 112 276
• Steel Bone Kong — Former superior whose support was decisive in Haku’s promotion. Kong later calls on Sengoku to assist in stopping Haku at New Marineford. 5 513
• The Five Elders — Sengoku is required to carry out their directives despite his reservations, including the operation against Ace and Whitebeard. 201