: This episode is the first to feature "RUN! RUN! RUN!" as the ending theme, which became a staple for the series' first major saga.
: 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 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. : This episode is the first to feature "RUN
One Piece Episode 31, titled marks a pivotal transition as the series enters the Arlong Park Arc . First aired in Japan on July 12, 2000, this episode shifts the tone from the lighthearted high-seas adventure of earlier arcs into a darker, more personal conflict centered on Nami's mysterious past. Plot Summary and Key Conflicts : Usopp and Johnny arrive at the nearby
: 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
The episode follows the Straw Hat crew as they track Nami to , the stronghold of a notorious Fish-man pirate named Arlong.