NACR-975 A beautiful wife, Yuri Ikuta, becomes a submissive sex slave in exchange for her father-in-law paying off a debt she can't tell her husband about.

Yuri started investing out of curiosity without telling her husband, but it went wrong and she ended up with 5 million yen in debt. She couldn't tell her husband, so she decided to ask her husband's father for advice... Her father-in-law agreed to pay off the debt, and she was happy for a moment. In return, her father-in-law wanted her body. With her weakness exposed, Yuri became her father-in-law's obedient sex slave...