One Piece Episode 57

Episode 57 is filler — it adapts no manga chapter.

Lone Island in a Distant Sea! The Legendary Lost Island · Reverse Mountain arc

This is a filler episode. It is anime-original and adapts no part of the manga, so you can skip it without missing story.

Anime

Episode 57Lone Island in a Distant Sea! The Legendary Lost Island

Manga chapters

None — this episode is filler.

One Pace

No One Pace episode covers this material.

The details

Episode 57 is filler — it adapts no manga chapter. Filler exists to stop the anime overtaking the manga. It is not written by Eiichiro Oda and is not part of the canonical story.