Rika, a married woman living with her husband in a small apartment in Tokyo purchased through a loan. One day, a man named Kudo visits her. Kudo claims to be an aroma salesman and recommends his new product. Rika signs the receipt acknowledgment form after being told there is a free one-week trial period. However, when Kudo returns later, he says something unexpected: 'The cost of the aroma is 1200000 yen. If you can't pay, work as an underground sex worker.'
