Keiko wants her beloved son to enter a prestigious university and consults his homeroom teacher for advice. Her son's grades are poor, and he is lost about his future. In this situation, Keiko considers using her own charm to find a way out. She exposes her alluring body in front of the teacher and pleads for his cooperation to save her son's future. The teacher, swayed by Keiko's allure, finds himself drawn into her unreasonable request. As a result, their relationship takes a new turn.