A harmonious couple, Chisato. However, the husband fails in an investment and ends up with a massive debt. The brother who lent him money says, 'If you can't pay it back, then keep your promise,' and starts making advances on Chisato. In reality, the husband had made a pact that if he couldn't repay the money, his brother could do whatever he wanted with his wife. 'You! This is a lie, right?' 'Chisato, I'm sorry...' Helpless, Chisato is embraced by her brother-in-law. But this was just the beginning...
