The unprotected seduction of a serious female student with big breasts that confuses a middle-aged teacher who is about to retire.

For Ozawa, whose relationship with his wife had grown cold, spending time with his students was the only source of emotional support. However, as he approaches retirement age, one student disturbs his heart. . Azusa Hikari. He is an honor student with excellent grades and serves as the student council president, but for some reason his grades have fallen in Ozawa's class. Worried, Ozawa goes to extra lessons after school, but Azusa doesn't listen and just stares at him with a grin. The moment I tried to pay attention to him, he suddenly kissed me. From that day on, the distance between him and Azusa grew closer and closer...