Miyuki (red) and Sayuri (blue) are very good friends,
but also very good rivals.

Both girls are class mate of a female boxing school for pro-topless boxing. Miyuki always lead her friend Sayuri. Sayuri yearn for Miyuki with love. and she want to beat her as a boxer.

In spring, the school make choice of only one alumna by topless boxing fight. They are love each other in the ring by own fists. "I love you! I beat you!"