: The name of Jinbe, one of the Seven Warlords of the Sea , is first mentioned by Yosaku, foreshadowing his later importance in the series.
: 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.
The episode follows the Straw Hat crew as they track Nami to , the stronghold of a notorious Fish-man pirate named Arlong. One Piece Episode 31
: In the manga, Nami's foster mother, Bell-mère, is shot in the head during flashbacks; however, the anime (and this episode's context) censors this to a shot in the chest.
: 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. : The name of Jinbe, one of the
: 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
Episode 31 is significant for introducing several elements that remain vital to the One Piece lore for hundreds of chapters: The episode follows the Straw Hat crew as
: 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