A few months have passed since my mother got fed up with my father and left home. Being a family of only men, the father thought it was Ito that the housework was not done properly and suggested they hire a housekeeper. A few days later, Maiko was sent from the housekeeper center. Maiko was full of maternal love and sex appeal, and her brothers Natsuo and Shun could not hide their excitement. One day, Shun was taken out by his older brother Natsuo to the living room where his father and Maiko were, saying he would show him something good. Then, to his surprise, the sight of Maiko servicing his father caught his eye...