Yukimura Sanada and Masamune Date are as often fighting over the sports field, when a very strange phenomenon occurs. The two rivals will have to cooperate to get out of trouble. Eternally handcuffed, Kanbei Kuroda feels like an outcast on campus. However, Otani arrives with new hope: he would know where the key to those damn handcuffs is. Kanbei has no choice but to follow the trail.