One summer vacation, he returns to the countryside alone after getting divorced. He becomes close with Asuna, a married woman who lives next door. Asuna, who was not satisfied with sex with her husband, learns that the reason for their divorce is his strong sexual desire, and seduces him while he is sleeping! From that day on, he begins to have an affair every day, and fucks the married woman ferociously...! A summer vacation that he can't tell anyone about, where he fucks the married woman without caring that her husband is there...