GMA-058 Bound and trained wife. A young wife living with her father-in-law discovers his secret. She transforms into a lustful bitch on the night of the massive blackout.

Due to her husband's transfer, Yukari and her spouse started living with her father-in-law. One day, while cleaning, she found SM tools like ropes and candles in her father-in-law's belongings. Noticing this, her father-in-law saw Yukari's reaction and realized she was frustrated. 'You don't need to be scared; you're not disinterested, are you?' he said as he slowly approached and began tying her up. Despite feeling frightened, Yukari experienced pleasure...