This movie has 3 parts and the first part is (1) A wife hired a maid to take care of and help her husband when she was on a business trip. But she did not know that the maid she hired was so enthusiastic that she took care of her husband like a wife, even when having sex. (2) A married man was disappointed because his wife had not let him fuck for 3 days. He accidentally met his younger sister Tsukasa Aoi who was working at his house. After not fucking for so long, the landlord could not control his erection before her body and rushed in to squeeze her breasts and finger her pussy.