Rui Ayukawa who lost her husband in an accident and decided to work as a live-in housekeeper for the Sagawa family. For the Sagawa family, who live with their father and son, one day they will become more than a housekeeper. However, it was the beginning of the lewd drama that Rui was able to have a lover. "Rui's love is a betrayal of the Sagawa family." Such a twisted hatred drives the father and son to the Mausoleum...