The main character starts dating Kaname, a girl who is very famous for her large breasts at the family restaurant where he works part-time. However, the manager, who is jealous of her, forces her to have relations with him. At first, she dislikes it, but gradually she becomes seduced by the manager's enormous penis and his rough attitude. Eventually, our good man discovers how the manager is destroying his girlfriend. That's the fate of the guy.