A happy marriage is shattered when her husband’s trusted friend, a moneylender, betrays him, saddling his company with crushing debt and forcing it into bankruptcy. Hoping to reclaim their old life, Mariko secretly meets the lender. He gives her an ultimatum: “If you want to save your husband, be my woman every weekend.” Believing that her own suffering can rescue the man she loves, she offers him her body. From then on, her humiliating weekends are spent as his substitute fucktoy, repeatedly creampied with no end promised until she becomes pregnant.