Buena Festa, self-styled master of ceremonies for the "Pirates Festival," invites Monkey D. Luffy and the Straw Hat Crew to the greatest gathering of pirates in history, drawing infamous rivals from the Worst Generation to one island. Beneath the festival's spectacle, the ex-pirate Douglas Bullet is chasing his own ambitions, and Luffy's crew is pulled into a fight far bigger than a party. This novelization retells the story of the 2019 film One Piece: Stampede.