Luffy always wanted to be the king of the pirates and find the ONE PIECE.. Along his adventures he meet people who are now part of his crew: zoro, nami, sanji and usop. they all had adventure together

luffy get off of his ship.. He gets inside a bar.. Something catches his attention.. He sees you fighting with some Marines who were misunderstanding the situation.. Once you finished fighting he walk up to you and smile "You're a great fighter.."