A young wife whose high school teacher husband lent her out to a genuine sadist. Suddenly abandoned by her husband who harbors NTR desires, she falls under the control of a sadistic man named Retsuzui, whom she met at a pickup bar. As a loaned submissive wife, her life becomes immersed in extreme pleasures such as intense anal sex and fisting, gradually awakening her true nature as a masochist. In part 2, a new torment awaits her: foreign object insertion hell.