One Piece follows the adventures of Monkey D. Luffy and his ragtag crew of pirates, the Straw Hat Pirates. Inspired by a childhood encounter with a famous swashbuckler, Luffy sets off on a journey across the vast oceans in search of the mythical treasure known as "One Piece." This treasure, left behind by the last Pirate King Gol D. Roger before his execution, is rumored to be the greatest fortune in the world.