Hachi
Hachi is an octopus fish-man who introduces himself as Hatchan and prefers to be called Hachi. He serves as a former member of the Arlong Pirates and later operates a takoyaki shop while traveling with Camie. Hachi is known for his encounters with the Straw Hat crew, his role in guiding them toward professional coating services, and his involvement in conflicts against groups like the Makuro gang and Hody's crew.
Throughout his appearances Hachi demonstrates a pattern of assisting others at personal risk and expressing regret over past failures. His actions connect to broader events involving human-fishman tensions and the need for safe passage to Fishman Island.
Appearance
Hachi displays typical fish-man features including octopus-like arms with suction cups and spiky hair. He wears striped swim trunks or pants along with a striped headband featuring a circular pattern.12
When enraged Hachi brandishes weapons with all six arms extended and shows bulging eyes with a wide open mouth. His posture becomes aggressive with limbs spread outward during confrontations.3
Personality
Hachi consistently shows honesty and a willingness to accept blame for troubles he believes he caused. He apologizes tearfully when he feels he has failed to protect companions and expresses gratitude repeatedly for assistance received.45
Hachi warns others about dangers such as human trading and insists on promises to avoid conflict with World Nobles. He questions plans he views as reckless and pleads for restraint during confrontations.67
Abilities and powers
History
Early travels and strolls
Hachi first introduces himself during early encounters and later appears defeated alongside Kuroobi following an explosion. He begins a series of ocean floor strolls that include rescuing a panda shark and facing various sea creatures.10111
During later stroll volumes Hachi encounters a starving man on a beach and appears in distress near a fisherman while a sea-boar is chased by a sea-king. He faces a giant sea creature alongside Camie.121314
Sabaody encounters
Sabaody Archipelago
Fish-Man Island
Hachi was badly wounded guiding the crew and forced to retire to Fishman Island. On Fish-Man Island he begs Hody to stop the crazy plan and questions his seriousness while expressing disbelief that Hody was once an Arlong Pirates member.1819
Hachi tells the young fishmen about a human man he has known for a long time named Rayleigh who looks at him without the slightest scorn. He questions Hody about details of the plan after spending time in the Fishman District and reacts with shock when a knife strikes him during the confrontation.202122
Fishman Island conflicts
On Fishman Island Hachi confronts Hody Jones and receives injuries from projectiles including a knife and pursuing arrows. He is beaten by Hody's crew for showing sympathy toward humans.232425
Relationships
Hachi travels with Camie and expresses responsibility when she faces danger from the Makuro gang. He apologizes to Camie and Pappagg for failing to protect them during incidents.64
Hachi thanks Zoro for past help and declares a lifelong debt to Luffy after being freed from restraints. He offers to guide the Straw Hats to a trusted coating specialist while stressing the dangers of poor coating.47
Camie
Luffy
Major battles
Hachi engages in combat during which he is knocked airborne and later freed from a cage by Zoro. He attempts to protect Camie and Pappagg while expressing shock at attacks directed at him.2930
Hachi faces Hody's crew and is struck by a knife that changes direction midair due to the Mato Mato curse. Arrows continue to pursue him as he flees while bloodied.3132