is a manga and anime series created by Eiichiro Oda. It is the story of the Strawhat Pirates, led by captain Monkey D. Luffy, on their adventures in Grand Line. The main theme is Monkey D. Luffy's dream to find the One Piece, a grand treasure that the King of the Pirates, Gold Roger left behind. One Piece seems to take place in a world with one continent, many different islands, and a vast and large sea filled with monsters, pirates and treasure. One Piece is serialized in weekly JUMP(週刊少年ジャンプ）. The most successful movies are "Strong World" and "One Piece Film Z".