| Fish-Man Island arc | |
|---|---|
| Name | Fish-Man Island arc |
| Series | One Piece |
| Creator | Eiichiro Oda |
| Publisher | Shueisha |
| Magazine | Weekly Shōnen Jump |
| First | 2009 (manga) |
| Last | 2011 (manga) |
| Adaptations | One Piece anime |
| Genres | Adventure fiction, Fantasy fiction |
Fish-Man Island arc
The Fish-Man Island arc is a story arc in the One Piece manga and anime that follows the Straw Hat Pirates as they travel to an underwater realm inhabited by Fish-Men and Merfolk. It is significant for advancing long-term plotlines about racial conflict, revealing major details about Jinbe, the crew's relations with the World Government, and setting up later events in the New World era.
The arc spans chapters of the manga by Eiichiro Oda and corresponding episodes of the anime adaptation. It takes place after the two-year time skip that follows the Marineford War and the summit at Sabaody Archipelago. Fish-Man Island sits 10,000 meters under the Red Line and serves as a geopolitical and cultural crossroads between humans and aquatic races. The arc connects narrative threads from the Arlong Park saga, the history of the Kuja and Amazon Lily, and the legacy of figures like Fisher Tiger and Queen Otohime.
After leaving the Sabaody Archipelago and navigating the perilous New World currents, the Straw Hat Pirates arrive at Fish-Man Island using a special seahorse submarine, guided by Vander Decken IX's fallout and other sea hazards. The crew learns about the island's recent political instability and the movement led by the former royal princess Shirahoshi, who is revealed to be the ancient weapon Poseidon with the power to communicate with Sea Kings. Tensions escalate when the island is invaded by the pirate crew of Hody Jones, a militant Fish-Man nationalist supported by disgraced former royal guard members like Daruma and empowered by illegal Energy Steroid called "energy steroids" developed by allies such as Hyouzou.
Major confrontations involve the Straw Hats facing Hody's forces and a clandestine plot by the pirate royal family connections to seize control of the island. The arc culminates in large-scale battles where allies including Jinbe and members of the Fish-Man Island royal family confront both Hody's rebellion and the intervention of the Seven Warlords of the Sea system indirectly through historical consequences. The Straw Hats help restore order and influence the island's stance toward open relations with surface dwellers, while the revelation of Poseidon's identity has ramifications for global power balances.
Notable figures introduced or spotlighted during the arc include: - Hody Jones — antagonist and leader of a xenophobic Fish-Man faction. - Shirahoshi — the young Merfolk princess and the revelation of the ancient weapon Poseidon. - Jinbe — a prominent Fish-Man helmsman and former Warlord of the Sea; his past with Fisher Tiger and loyalty to the Straw Hats are emphasized. - Arlong (revisited) — historical antagonist referenced to provide context to Fish-Men-human relations. - King Neptune and Queen members of the royal family — rulers of Fish-Man Island with political influence. - Supporting characters: Koala is not introduced here but other allies and island residents, including members of the royal guard and civil society organizations, appear. The arc also features appearances and consequences tied to broader entities such as the World Government, Revolutionary Army, and surface pirate crews like the Straw Hats.
The arc explores themes of racism, reconciliation, and historical trauma between humans and Fish-Men. It revisits the legacy of slavery and resistance embodied by Fisher Tiger and the pacifist efforts of Queen Otohime to bridge cultures. The narrative examines how radicalization (exemplified by Hody Jones) can arise from unresolved grievances and how leadership choices impact interspecies diplomacy. The identification of Shirahoshi as Poseidon elevates the arc's geopolitical stakes by tying it to the series' lore of ancient weapons, alongside Pluton and Uranus; this feeds into global strategies by actors such as the World Government and the Yonko. The arc contributes to character development, particularly for Sanji, Luffy, and Nami, and consolidates Jinbe's role as a bridge between worlds.
The Fish-Man Island arc was written and illustrated by Eiichiro Oda and serialized in Weekly Shōnen Jump by Shueisha between 2009 and 2011, later collected in several tankōbon volumes. The arc was adapted by Toei Animation for the television anime, with additional pacing and filler episodes to accommodate broadcast schedules. Music and animation teams expanded visual design for underwater environments, Sea Kings, and Fish-Man Island architecture, integrating recurring motifs established since the East Blue and Sabaody Archipelago arcs. Merchandise and tie-ins, such as themed figures and video game content in titles like One Piece: Pirate Warriors, drew from the arc's distinctive setting and characters.
Reception was mixed to positive: critics and fans praised the arc's ambition in addressing social issues and its expansion of series mythology, while some criticized pacing and filler in the anime adaptation. The reveal of Poseidon as Shirahoshi and the focus on Jinbe strengthened later plotlines culminating in Wano Country and the final saga setup. Fish-Man Island's themes influenced subsequent arcs' treatment of racial reconciliation and international politics within the Grand Line and New World. The arc remains cited in analyses of One Piece for its sociopolitical commentary and its role in the long-term storytelling strategy of Eiichiro Oda.
Category:One Piece arcs Category:Underwater settings