After shopping with friends, Mitsuko decides to take the train she normally wouldn't use. This choice inadvertently draws the attention of a molester who has set his sights on her exquisite, voluptuous body. Trembling in fear, unable to cry out, she cowers in terror—yet to her surprise, she begins to feel pleasure from this sudden, abnormal experience, despite being over fifty. When she returns home, she masturbates for the first time in ages, unable to forget the sensation. The next day, she walks the same route again, heading toward the station in pursuit of that same pleasure. In doing so, she reveals a new, unexpected allure quite unlike her ordinary daily self.