The Minamis are known as a devoted couple, but Shiori has a secret life. When the building manager notices unfamiliar men repeatedly visiting their home, he spies on the apartment and discovers her selling sex. On a later visit, he finds her waiting for a client without panties, ass raised invitingly. Losing control at the sight, he thrusts into the shocked wife and creampies her. From that day forward, the once-respectable wife is forced into complete submission as the manager’s personal sex toy.