It's a date!.Ann Tachibana asks Momoshiro for a date, but Momoshiro forces Ryoma to join too. Inui was nearby and thought these three were a love triangle and calls almost all the regulars to see this. It turned out to be a tennis date at the street tennis court. Kamio sees Ann and Momo and gets jealous , leading to Fuji mistaking the love triangle 'relationship' to a love square 'relationship' - between Momo, Echizen , Kamio and Ann. At the end, players from different schools play doubles match - Ryoma and Shinji Ibu against Akira Kamio and Momoshiro.