After choosing to train under Garp, Ace learns many things about his parents and how his father the late Pirate King asked Garp to do him a favour to keep Ace safe from the world, and also Garp being Roger’s enemy accepts to help him. But something in his heart tells him to follow the path his father walked on. So, Ace has a decision to make, whether he wants to be a pirate or be continue as a marine officer.