Garp is Luffy's grandfather and father of the revolutionary Dragon. As a Vice Admiral, he is a hero of the Navy and a legendary mariner who has been pursuing the pirate king Roger. He once wanted to make Luffy and Ace the strongest marines, so he took Luffy to the Dadan family, bandits living in Mount Corvo, and forced them to leave him with Dadan, who didn't like it. It was also Garp who gave special training to Coby and Helmeppo. During the Marine Ford Great War, he was torn between his duties as a naval officer and his feelings for Ace and Luffy. After the Great War, he left the front lines to train the younger generation.