Ayane Aino plays a devoted wife who remains unaware of her husband's massive debts from stock and foreign exchange trading, faithfully supporting him as they face financial ruin. In a desperate move, her husband pledges Ayane as collateral without her knowledge. She is then taken before a group of men and brutally violated. Unfamiliar with such acts, Ayane has her anal virginity forcibly taken as the men roughly stretch and train her tight back door. As thick, rigid cocks are hammered deep into her rectum, Ayane awakens to a new, intense pleasure, beginning her transformation into an anal slave madam.