Shohei Yoshimi, a university student, is in love with Hatsumi Kurosawa, a tall, beautiful, married woman who lives next door to her apartment.Also, when Hatsumi, who was frustrated with her, saw her erect crotch of Shohei, she began to feel her feelings for him.Her thoughts grow stronger and force her to take bold actions.An adulterous relationship with a young man who is more than one year old makes an ordinary married woman indecent.