A beautiful and kind teacher, Yumi, who was adored by her students, lived her days with a gentle smile. However, one day, she suddenly encountered a molester on her way home on the train. Overcome by fear and anxiety, she became a victim of assault. The incident left a deep emotional scar on Yumi. The next day, a student spotted the molester near her, threatening her reputation at school. With no escape left, she was forced to submit to her students' demands, her body taken against her will. Gradually, Yumi was pushed to the edge, losing all control over her own fate...