In the world of manga and anime, where there are so many tropes and themes, One Piece is blisteringly unique. There is simply nothing else that comes close rto the concept behind One Piece. It is an original and fresh take on pirates in anime. A combination of fantasy & shonen mixed with plenty of zany comedy and even zannier charachters. It follows Monkey D Luffy, a boy whose body has rubber like abilities after accidently eating a Devil Fruit. With his crew of pirates, named the Straw Hat Pirates, Luffy explores the Grand Line in search of the world's ultimate treasure known as "One Piece" in order to become the next Pirate King.This definitely is what makes it so popular and what makes the merchandise so great....ah what we would give to be a sailing the seas with Luffy and his crew!