Maki, who has a son about to enter college in the spring, has been overly protective of him out of love. However, she receives a call that her son has been caught sexually harassing a female student at school... Just as his acceptance to college was secured, this incident occurs. The teachers offer Maki a settlement condition: to spend one day as the companion of the male teachers. Though she agrees out of love for her precious son, she gradually becomes aware of her own masochistic tendencies...