Yoshiko has a single son who is about to advance to the next school year in spring. Due to her love, she had been overly protective of him. However, one day she received news that her son had shoplifted... Just as his advancement was secured through recommendation, this incident occurred. Yoshiko pleaded with the teachers, "For my child's advancement..." The teachers presented a condition for settlement: ≪Spend one day with the male teachers≫. Yoshiko complied for the sake of her beloved son but gradually began to realize her own masochism.
