Yoshiyuki, who confessed to Sayuri, the mother of his friend Mitsuo, had her caress him to teach her about a woman's body and ended up ejaculating from a handjob. Yoshiyuki fled due to embarrassment. Later, despite feeling awkward, he went to his friend's house and overheard Mitsuo and Sayuri talking. Seeing them laughing at him, Yoshiyuki felt betrayed, gave in to his anger, and raped Sayuri in front of his friend's son, thus losing his virginity.
