Asako, my wife, is pregnant and has returned to her parents' home. Toru, my husband, was left behind and can't do housework worth a damn, so the house is getting messier by the day. Just then, Asako's sister Nao came to help with the chores because she was worried about Toru... But actually, Nao had come to satisfy her desires with Toru. Unaware of this, Toru invited Nao into the house.
