JUR-813 For the sake of her beloved husband, she becomes a substitute weekend sex slave. She's repeatedly impregnated by a wicked, extremely virile old man until she gets pregnant... Yuuki Kanoha

A seemingly perfect married life is shattered one day. The husband, who runs a company, is betrayed by a friend he trusted who works as a moneylender, leaving him with a huge debt and forcing him into bankruptcy. Desperate to return to the happy times, the wife secretly meets with the moneylender. "If you want to save your husband, become my woman just for the weekends!" With the thought that she can endure it if she just puts up with it, the wife decides to give herself to him. From that day on, a humiliating weekend begins for her as a substitute sex slave that won't end until she becomes pregnant...