Tenma Ichijo is a poor highschool student that works hard to clear his family's debt. Through an offer of a family friend, he's to work as a "temporary husband" for the daughters of a famous Company's President. His job is to help them get used to being around Men and to be prepared for their own future of likely being married off. Having accepted, he finds that things aren't quite as they seem. The three sisters are actually perverts with their own fetishes of which he is now blackmailed into assisting. It's time to rehabilitate three perverts.