Yuko, who has one son who is about to enter school in the spring. She was overprotective of her son out of love, but one day she received a notification that her son had taken a voyeuristic photo... Her son's scandal just as his admission to school was decided by recommendation. The teachers offer Yuko a settlement condition, saying, "For the sake of my child's education..." That is "to be with the male teachers for just one day." Yuko, who obeys for the sake of her beloved son, gradually begins to realize her own masochism...
