The beginning of the movie is a scene where teacher Momo Honda is walking in the hallway after school and discovers that there is still a student left behind. Seeing that he is having difficulty studying, she stays to help him. That student falls in love with his teacher. The next day, he gives her a gift to express his feelings, but in return for that feeling is an engagement ring. Yes, the beautiful teacher is married. The student's wish for his teacher is to fuck her once, and in a moment of weakness, the teacher agrees.