An adaptation of the second Romance Dawn one-shot manga, a predecessor to One Piece. The pirate Luffy is sailing in a search of "Piece-mains", pirates that focus on adventure and attack the "Morganeer" pirates who plunder lawlessly, when a Ruku ("monster bird") named Balloon lands in his ship. Luffy hands Balloon over to the nearby sorcerer pirate Speil, but gets imprisoned on Spiel's ship aft