A few months after her father and mother separated, she ended up living with three men, and the housework became disastrous. His father, unable to bear it, decides to hire a housekeeper. Growing up brothers Koki and Hidetsugu were skeptical, but their eyes changed when they saw the bewitching Momoko dispatched from the housekeeper center. Then, one day, the two witness their father and Momoko's lewd act. With their cunning, the two captured the scene on film.