Whole Cake Island: Sweets and Dangers in an Unforgiving World! As Luffy and his crew face an Emperor, Big Mom, for the first time, they must join forces to save Sanji in the extravagant kingdom of Totto Land.Composer: Kohei TanakaKohei Tanaka has been a lyricist, composer, and arranger for a multitude of animated works and video games, including Sakura Wars, Assassination Classroom, and the One Piece saga, since it's inception.