One Piece is a long-running Japanese manga by Eiichiro Oda, first published in 1997, with its anime adaptation following in 1999. At its centre is the One Piece, the legendary treasure left by the pirate Gol D. Roger, and the promise of finding it drives the Straw Hat Pirates across the Grand Line. The name has become shorthand online for an ultimate prize or long-awaited answer, so short clips built around it spread through anime edits, TikTok and reaction videos. Its familiarity keeps it useful years after the series began.