Monkey D. Luffy is a fictional character and the main protagonist in the anime and manga series One Piece by Eiichiro Oda. He is the son of the Revolutionary Army commander, Monkey D. Dragon, the famous naval grandson of Monkey D. Garp, the adopted son of the mountain bandit, Curly Dadan, and the foster brother of Portgas D. Ace the "Fire Boxer" and Sabo . The destination is returned to the Pirate King by discovering a legendary treasure that had been abrogated by the previous Pirate King Gol D. Roger. He believes by being a Pirate King, he will be the most liberated person in the whole world. He serves the fruit of Gomu-Gomu. As the founder and captain of the Straw Hat Pirate Group, he not only became the one who created it, but also became the strongest group in his group. The figure of Luffy as a troublemaker has been world wide and well known to the members of the Navy, Shichibukai to Yonko because once there are terms of criminal behavior that he has done. As a result of his actions, the World Government has regarded him as a very dangerous person. He has also earned a reputation as a "desperate" person, or even in certain "crazy" cases, after his formation in Enies Lobby, infiltrate in and out of Impel Down, and his participation in the Decision War at the Navy Headquarters. Therefore, Luffy, not only the only pirate who has managed to get into the three important facilities owned by the government, but also the only one who managed to get out of the three safely.