A few months ago, Elisa's husband's company went bankrupt and he had no prospect of finding a new job, so he was in trouble. Although Elisa had been paying for their living expenses, he was struggling to pay back the loan he had taken out. So he went to ask Shindo, a mutual friend and former classmate of the two, for help in borrowing money. However, the condition he offered in exchange for lending the money was, "I'll lend it to you if you use your wife as collateral."