Emi is happy to welcome her son and his wife back home. She feels relieved to see that they seem to get along well. Around that time, Emi realizes that she hasn't had a period, and that her period has started because she hasn't had sex with her husband for a while. She feels like her life as a woman is over, so she consults her husband about it, but he ignores her. However, Emi's sexual desire only grows. She manages to satisfy herself by masturbating in secret, but when her son sees her masturbating, she is upset and cannot resist, and she accepts her son's thing deep inside her, reaching an unwanted climax. The next day, her son, hiding from her husband and wife, seeks Emi. Emi, knowing that this can't continue, wants to have a loving relationship with her husband, but her husband says he can't see Emi as a woman and leaves. Her son appears in front of the depressed Emi, embraces her mother gently, and they share a passionate kiss...