Jinbei, also known as "Knight of the Sea," is a whale shark fish-man and a powerful warrior in the world of One Piece. Formerly the captain of the Sun Pirates and a former Shichibukai, he later joins the Straw Hat Pirates as their helmsman. Jinbei is characterized by his strong sense of honor, loyalty, and a deep commitment to peace between humans and fish-men. His strength, wisdom, and diplomacy skills are vital assets to Luffy and his crew as they navigate the Grand Line and beyond.