"Miyu" is a woman who borrowed money to give to her favorite host.

However, because she prioritized giving money, her repayments were increasingly delayed.

On the day of repayment, the financial institution told her that the amount was not enough, but the fearless Miyu ended up getting annoyed by their attitude and said that she would work in the sex industry.

However, Miyu herself had no resistance to prostitution, so she said this impulsively and headed to the sex industry establishment.

Yes, the underground sex industry "anal toilet woman".

When she realized that the sex industry was an abnormal anal specialty store, she was tied up and forced to work without being able to resist.

The first customer who came there was Saeki, the man she had been tricking. He had a special lotion for anal provided by the store in his hand. When he applied this to her anus, it immediately caused an unbearable "itch".

Miyu's anus could not bear the itch, so she asked Saeki to do it for her.