PTA chairman Reiko who has a past of being gang-raped by neighborhood delinquents. Her experience eroded Reiko's heart as a trauma. One day, Reiko notices the behavior of her student council officer. However, she finds out about her past of being gang-raped by a student council officer, and she is threatened to ``disclose her past''. Reiko, frightened by her trauma, has since been toyed with as a student council sex slave.
