My wife, your sex toy, is available for you to play with. You're not allowed to go home until you've been penetrated 10 times. A visit to the home of an obedient, extremely wicked nouveau riche uncle. Tachibana Mary JUR-504

The husband, who ran a company, was scammed by a loan shark friend using investment tactics, leaving him with huge debts and the company going bankrupt. The wife, longing for a happy life, was forced by the loan shark to become a live-in housekeeper. But the housekeeper role was just a pretense; in reality, she was using her body to pay off her debts to a ruthless, wealthy man. With the thought that she could just endure it, the wife decided to offer herself. Thus began the humiliating service of not being allowed to return home without being penetrated ten times...