Details

Three years after she got married, her husband's mother died and her father-in-law lived alone at her parents' house. One day, it turns out that her husband actually had a large amount of debt, and the father-in-law who took over it gradually demanded sexual activity to Mio. She has nowhere to go and does not refuse her father-in-law, and the act gradually escalate. And when his father-in-law learned that his husband wouldn't come back for a few days on a business trip, he finally planned a plan to turn Mio into pleasure with a large-scale bondage training.