One Piece: The Cooro Pirates

Cooro is an inheritor of the Will of D from his father, Cooro D. Meyer of the Crow Sword Style. He makes it his mission to set out into the Grand Line and spread the fame of his father's sword technique as well as build a powerful crew to become a great and legendary pirate like his sempai Monkey D. Luffy! (Takes place just after Arlong Park)