Sai

Biodata

Background / History

Sai succeeded Chinjao as the Happo Navy's leader and commanded its main fleet alongside his younger brother and Vice Pillar, Abu. As a member of the Chinjao family, he inherited Hasshoken, the family's guarded vibration-based martial art. 25 33

During the Happo Navy's seizure of a luxury cruise ship, Sai identified Hina as a promising Marine Academy graduate from a Marine Chronicle article. He blocked her spear with Hasshoken, attacked Jogo with Armament Haki-enhanced force, accepted Hina's surrender, and had her imprisoned in Seastone handcuffs. 25

Sai then forced Jogo to appraise the Happo Navy's stolen antiques. Jogo's expertise impressed both Sai and Abu, but Sai planned to keep him as a slave by exploiting the wording of his promise to release him once the work was finished. 26 27

After retrieving the badly injured Jogo following his battle with Daz Bones, Sai kept him aboard the ship as a slave. He grew suspicious of Jogo's unusually compliant behavior, authorized Abu to test him in a staged dispute, and later personally challenged Jogo after Abu's defeat. 28 31 32

Capone Bege later informed Chinjao of the Marines' planned ambush on the Happo Navy. With Chinjao's intervention having ruined the operation, Sai confronted Jogo and Hina aboard the ship. Sai discovered that Jogo had copied Hasshoken, but was ultimately overwhelmed by Jogo's 2000% Conqueror's Haki technique and knocked unconscious. 37 38 39

Appearance

Sai is a tall pirate usually depicted in a cloak and armed with a guandao. He has short, messy hair and carries himself with the confidence expected of the Happo Navy's Pillar. 25

• Tall build. 25
• Short, messy hair. 25
• Often wears a green cloak. 28 37
• Uses a guandao as his primary weapon. 25 38

Personality

Sai is proud of both the Happo Navy and the Chinjao family's martial legacy. He reacts fiercely to perceived insults against Hasshoken, especially after Jogo reproduces the technique in only a few days. 32 38

He is also pragmatic and possessive toward valuable talent. Although Jogo's historical appraisals earn Sai's genuine admiration, Sai immediately decides that such a rare specialist should be retained as property rather than released. 26 27

Sai enforces the Happo Navy's rules rigidly when they concern formal combat. When Abu takes another pirate's place in a duel and loses, Sai orders Abu—not the original challenger—to receive the prescribed whipping. 32

Abilities & Skills

Hasshoken

Sai is a highly advanced practitioner of Hasshoken, the Chinjao family's secret shockwave martial art.

• Produces vibration-based shockwaves capable of damaging opponents without direct contact. 25 32
• Uses the technique defensively, surrounding himself with ripples that hinder direct counterattacks. 32
• Can transmit vibrations through his guandao, combining weapon attacks with penetrating force. 38
• His shockwaves can numb an opponent's body and damage the ship's deck from several meters away. 32

Armament Haki

Sai has awakened Armament Haki and combines it with Hasshoken to greatly increase the force of his attacks. 25

• Coats his limbs in a black metallic layer. 25 32
• His Armament-enhanced Armament Heel shatters the deck and produces shockwaves far beyond Jogo's ordinary vibration defense. 38
• The enhancement turns Hasshoken into both a stronger offensive weapon and a more difficult defense to penetrate. 32 38

Combat Ability

Sai is an exceptionally fast close-range fighter whose physical attacks can overwhelm opponents before they can react.

• Easily blocked Hina's spear using Hasshoken. 25
• Pressured Jogo into focusing entirely on surviving ten moves rather than mounting a counterattack. 32
• His arrival was enough to make Daz Bones abandon his pursuit of Jogo rather than risk a second confrontation. 28

Equipment / Weapons / Items

• Guandao — Sai's signature polearm; he channels Hasshoken vibrations through its blade during combat. 25 38

Relationships

• Chinjao — Grandfather and former Happo Navy leader. Chinjao's intervention overturned the Marines' ambush, and Sai reports directly to him. 25 37
• Abu — Younger brother and the Happo Navy's Vice Pillar. Sai enforces the Hasshoken rules against Abu after his loss to Jogo, later nearly killing him after Abu massacres fellow crew members to save Sai. 32 39 40
• Jogo — Captured historian, unwilling appraiser, and eventual enemy. Sai sought to enslave him for his historical expertise but was defeated by Jogo's Conqueror's Haki. 26 27 39
• Hina — Undercover Marine whom Sai recognized, captured, and imprisoned aboard his ship. She later took custody of him after Jogo defeated him. 25 40
• Capone Bege — Provided Chinjao with intelligence about the Marine ambush, indirectly enabling Sai to expose Jogo and Hina's plan. 37

Story Role / Major Arcs

• Cruise Ship Raid — Leads the Happo Navy's hostage operation, identifies Hina as a Marine, captures her, and confronts Jogo. 25
• Jogo's Captivity — Uses Jogo's archaeological skills to appraise stolen antiques, then attempts to keep him permanently as a slave. 26 27
• Happo Navy Ship Conflict — Tests Jogo through Abu, defeats him in their initial ten-move match, and unknowingly provides the movements Jogo uses to imitate Hasshoken. 31 32 33
• Final Confrontation — Discovers Jogo's copied Hasshoken, escalates to Armament Haki-enhanced attacks, and is instantly defeated by Jogo's focused Conqueror's Haki. 38 39
• Aftermath — His Marine capture becomes a major political issue due to his position as Chinjao's grandson and the Happo Navy's active Pillar. 40 50