One Piece is a massive story full of amazingly constructed world-building that delves deep into the small details of the world the Luffy and the Straw Hats live in. From well-constructed government systems to minuscule characters being given unreasonable levels of depth, many fans applaud One Piece for being a series that gets the tiny details right. However, with that being said, there are some tiny details that Oda leaves out of the story, due to a lack of relevance to the overall plot, that some fans believe to be more important than Oda lets on.