For 12 years of marriage, the innocent Kyoko has devotedly supported her husband. Seeing her husband struggling day by day to raise funds for the company that had fallen into the red due to the effects of COVID-19, Kyoko suggests that they apply for assistance from a loan shark. After a while, they seem to be able to secure the funds, and Kyoko thinks they can finally rebuild their business, but her husband suddenly disappears. Soon after, Nakamura, who calls himself a well-intentioned third party, appears. He is a hyena who buys up bad loans from loan sharks at low prices. He appears before Kyoko and confronts her about the debts that she has no hope of paying back, making her declare, "My body is the collateral for my husband's debts."