A 19-year-old college student named Minori, studying in Tokyo, who has always avoided relationships with men. She once had a boyfriend, but when she refused him touching her breasts, he suddenly turned violent—covering her mouth and attempting to assault her. Since that incident, she developed a fear of men and gradually began avoiding them altogether. Determined to change herself before turning 20, she faces her anxiety as her trembling body is gently caressed. At the moment of penetration, her face tenses and faint tears well up in her eyes. The entire experience of losing her virginity is captured here.