You are here: Home CURIOSITIES One Piece References in other Anime Series! One Piece References in other Anime Series! I was researching all the One Piece references used in other manga/anime/cartoon series. Needless to say that there was tons of them. Here is what I found: Gintama Assassination Classroom JoJolion Page 1 of 5Previous 12345Next See more Previous article The Cause of the War between the Ancient Kingdom and the World Government Next article All the qualities necessary to be a Conqueror’s Haki User!