Tight-Bondage Training Wife: After Discovering Her Husband's Debt, a Couple Seeks Help from His Rural Father-in-Law. In a Closed-Down Hot Spring Inn, an Unfortunate Wife Falls into Rope—Mio Ichijo
Three years into her marriage, Mio moves into her husband's family home to live with her father-in-law after her mother-in-law passes away. One day, her husband's massive debt is revealed, and after bailing him out, her father-in-law begins making increasingly sexual demands toward Mio. With nowhere else to turn, she cannot refuse his advances, and their encounters grow more intense. When her husband leaves on a business trip, her father-in-law systematically initiates a tight bondage training regimen. A full-scale plan unfolds to lure Mio into pleasure against her will.