Monkey. D. Luffy refuses to let anyone or anything stand in the way of his quest to become the king of all pirates. With a course charted for the treacherous waters of the Grand Line and beyond, this is one captain who'll never give up until he's claimed the greatest treasure on Earth: the Legendary One Piece! Chibi is an adjective that means small and/or miniature in a good or cute way. Normally used to describe (young) people or animals, and is endearing.