This episode is a major shift in tone for the series. It moves from the gritty, pirate-heavy themes of Jaya and Mock Town into a world of . It establishes the "layers" of the sky world (Blue Sea, White Sea, and the White-White Sea) and introduces the central mystery of "God" Eneru and the sacred grounds they are about to enter.
Almost immediately, the crew is ambushed by a masked "Sky Rider" (later revealed to be a Shandia warrior). Because the thin air makes it hard to move and breathe, the Straw Hats struggle to fight back. One Piece Episode 153
, titled "Sail the White Sea! The Sky Knight and the Gate in the Clouds!" , marks the official beginning of the fan-favorite Skypiea Arc . After the intense ride up the Knock Up Stream, the Straw Hat Pirates find themselves in a world that defies all logic: an ocean made entirely of clouds. ☁️ Episode Overview Original Air Date: May 4, 2003 Manga Chapters: Adapted from Chapters 237 and 238 This episode is a major shift in tone for the series