A debt-ridden man and his wife beg his younger brother for help. Despite the older brother's history of dumping the family business on him and wasting money on failed ventures, the kind younger brother lends them one million yen. The contract, however, says the wife must repay the debt with her body if they default. The moment it is signed, he fondles and kisses her in front of her husband, licks her nipples, fingers her, makes her taste those fingers, and forces her to suck his cock while her helpless husband watches. After using her and creampieing her, he even makes her clean him with her mouth. Her wedding ring glints sadly as she insists she is doing it for her husband—a story of a devilish brother-in-law, a pathetic husband, and a devoted wife.