The Prince of Tennis: Two Samurais, The First Game
Tennis no Oujisama: Futari no Samurai The First Game (Japanese)
テニスの王子様 二人のサムライ The First Game (Japanese)
網球王子劇場版 二人武士 (Chinese (Taiwan))
The regular players from Seigaku participates in an exhibition game aboard a cruise ship. However, they discover that the event is being run by a corrupt millionaire heavily involved in illegal gambling and betting, who demands that they lose the match on purpose. To add to the confusion, one of the players on the rival team introduces himself as Ryoma's brother.