: They encounter a man named Gaimon who has been stuck in a treasure chest for 20 years. He has spent two decades guarding five treasure chests perched on a high rock pillar that he couldn't reach after falling.
Episode 18 of the One Piece anime, titled , is a standalone story that takes place right after Usopp joins the crew. It is often considered a "cult classic" episode because it explores the nature of treasure and the meaning of a pirate's journey early in the series. Episode Summary One Piece Episode 18
: While it feels like filler because of its self-contained nature, Gaimon is a canon character who originally appeared in the One Piece Manga and even appears in later cover stories. : They encounter a man named Gaimon who
For more detailed breakdowns or to watch the episode, you can check platforms like Crunchyroll or Pluto TV . It is often considered a "cult classic" episode
: Luffy helps Gaimon by climbing the pillar, only to discover that the chests are empty—his crew had already taken the treasure before leaving him behind years ago.
: This episode serves as an early philosophical anchor for the series, reinforcing that "treasure" isn't always gold or jewels; it can be freedom, friendship, or a sense of purpose.
: Many fans recommend watching it for its heart and humor, though some viewers skip it because it doesn't directly advance the main plot towards the Grand Line.