At Kawakami Academy, a dispute is being settled between Class 2-F and Class 2-S during an "academy war". All seems to be going well for Class 2-F until Momoyo Kawakami, one of the "Big Four" in the martial arts world, arrives. Luckily, Yamato Naoe, tactician of Class 2-F, already prepared a countermeasure for her, that being two other members of the "Big Four". In the end, Class 2-F win, as Shoichi Kazama, captain of Class 2-F, managed to beat Hideo Kuki while Momoyo defeated the rest of the "Big Four". After having confessed his love for Momoyo in the past and being turned down once, Yamato confesses his love for her again, but she'd rather see him as her best friend.