The cook of the Straw Hat Pirates and one of the wings of the Pirate King, Sanji is one of the most important characters in the One Piece story. Having joined Luffy on his quest to become the Pirate King in the East Blue, Sanji has, since then, become a key member of the crew and has been responsible for saving the lives of the entire crew on many occasions. In One Piece, Sanji serves multiple roles in the Straw Hat Pirates. Not only is he the cook of the ship, but he's also one of the most formidable fighters.