Akane Nanao, quitted swimming because of her big breasts, she fell in love with Shouya, who practicing baseball everyday although he’s just a benchwarmer in his club. His spirit ignited Akane’s. They started their relationship not too long after she joined the club, however love relation between club members is forbidden, so they decided to keep their relationship secret, at least in front of club members. However they got caught by the club’s coach. Later the coach gives Akane a sexual guidance to release her bursting libido. The coach threated Akane if she reported him to other teacher by leaking their relationship and stripping Shoya’s position from the club. Akane who doesn’t want Shouya’s three years effort to go waste have no choice but to obey his words.