The manager of baseball club, Akano Nanao, fall in love Katase Shouya. The very reason she joined baseball club is him, Even though Shouya is only a benchwarmer, his spirit in baseball has motivated her who quitted swimming because of the size of her breast. Their relationship is mutual, however, relationship between club members is prohibited. But the club’s coach knew about their relationship. There was a rumours about the new coach, he was transferred to Akane’s school because of his misconduct he did in the past. The rumours appears to be true. The coach gives a sexual guidance to Akane to vent her libido. Akane threated by the coach if she were to tell to other teacher about the guidance. In order to save Shouya from being suspended, she had no choice but to accept the guidance.