Rei’s happy marriage collapses when her businessman husband is betrayed by a trusted moneylender, saddled with enormous debt, and driven into bankruptcy. Desperate to restore their old life, she secretly meets the lender. He tells her that if she wants to save her husband, she must belong to him every weekend. Believing she can endure anything for her spouse, Rei offers her body—and begins a humiliating routine as his substitute human toilet, repeatedly creampied until he gets her pregnant.