Eight years into her marriage, Sae finds herself growing bored with sex with her husband, yet increasingly aware that her own sexual desires are intensifying day by day. When her husband begins living apart for work, she starts working at an exclusive membership-based brothel. Under the careful body inspections by the manager, progressing to sensitivity checks, she quickly becomes wet, waves of pleasure spreading throughout her entire body. Through daily, relentless training from the well-endowed manager and intense female-dog-style domination by VIP clients, Sae experiences an unparalleled, supreme excitement unlike anything she's ever felt before.