Des：One day, I received a phone call at the tax office. It was a phone call accusing Nanao of evading a considerable amount of tax at the inn where she works as the proprietress. Immediately, tax officials Oiwa and Inoue head to the hot spring inn where Nanao is staying to conduct an undercover investigation. She stays at a hot spring and notices a staff member conducting an undercover investigation, so she plans to do some extremely erotic tricks on the staff member in a see-through yukata in order to somehow evade the tax investigation.