21-year-old Toto (Okada Junichi) falls in love with his mother's friend Shishi, a married woman who is 20 years older than him (Kuroki pupil). They fall in love at first sight and start a secret love affair. Through good friend Gengji (Matsumoto run) also has an intimate relationship with housewife Simiko (Terajima), but the emotion is very complex and difficult to understand, he also has a girlfriend. Over the past three years, I have listened to the music that Shi Shi likes, read his favorite books, and waited for a phone call from Shi Shi at home every afternoon. He couldn't take the initiative to call her. it was an agreement. Gradually, he became more and more unable to satisfy such a relationship, and he put forward the request of living together to the history of poetry. The history of poetry is rational, she knows that everything she has is given by her husband, and she knows what it means to leave her husband, so she has been vaguely evading the demands put forward by Tou. However, when Toto expressed his love in front of her at the party and left, Shi Shi finally made a decision.