Maki has an only son who will be going to college in the spring. She has been overprotective of her son out of love, but one day she receives a call saying that her son has sexually molested a female student at school... Just when it was set to enter college on recommendation, her son's scandal occurs. Maki pleads, "For the sake of my son's college entrance...", and the teachers offer a condition for a settlement: "To entertain the male teachers for just one day." Maki does as they say for the sake of her beloved son, but before she knows it, she begins to become aware of her own masochism...