For six years after getting married, the innocent Saki has devotedly supported her husband Kosuke. Seeing her husband struggling daily to raise funds for his company, which has fallen into the red due to the effects of COVID-19, Saki suggests that they apply for assistance from their estranged father-in-law, a wealthy landowner. Kosuke was hesitant because he hated his greedy father and left home, but reluctantly the two of them head to their parents' home. Their father-in-law Katsuji welcomes them and readily agrees to financial assistance, but he has an evil intention behind it... "My body is the collateral for my husband's debts." The wife is raped by her devilish father-in-law.