Takako, mother of a son about to advance to higher education in spring. She was overly protective of her son out of love, but one day she receives a report that her son was involved in voyeurism... Just when his recommendation for school was confirmed, this scandal occurs. The teachers offer a settlement condition to the pleading Takako who says "For my child's education..." — to spend just one day servicing the male teachers. Takako obeys for the sake of her beloved son, but before long she begins to realize her own masochistic tendencies...