A married woman running an exclusive luxury spa salon for celebrities in a high-end residential district of Setagaya, Tokyo. However, after her business fails, she accumulates massive debt, causing severe financial strain. Seizing on her desperation, a loan shark offers her a way to "turn her body into money." The situation escalates as the loan shark involves her husband and their young daughter, leading to a brutal scene of humiliation and forced anal repayment right before her family's eyes.