One Piece Episode 31 Apr 2026

: This episode is the first to feature "RUN! RUN! RUN!" as the ending theme, which became a staple for the series' first major saga.

: The episode establishes Arlong as a formidable villain from the Grand Line, possessing strength that far surpasses previous foes like Don Krieg. It also introduces the concept of Fish-men as a superior race with biological advantages like underwater breathing and immense physical power.

: Usopp and Johnny arrive at the nearby Gosa Village, only to find it completely leveled by Arlong’s sea monster, Momoo , as punishment for the villagers' resistance. Major Character Debuts and World-Building

Episode 31 is significant for introducing several elements that remain vital to the One Piece lore for hundreds of chapters:

: Reviewers from sites like Rotten Tomatoes and IMDb often cite this episode as the moment where the stakes of the "East Blue Saga" feel truly high, beginning Nami's redemption arc. Episode 31 | One Piece Wiki | Fandom

: Major antagonists such as Chew, Kuroobi, and Hatchan are introduced as the high-ranking members of the Arlong Pirates. Production and Significance

: While attempting to scout the base, Roronoa Zoro is captured by Arlong’s subordinates. During his interrogation, Zoro is shocked to discover that Nami is apparently an officer and cartographer in Arlong’s crew.