https://www.dlsite.com/maniax/work/=/product_id/RJ256361.html

deepl translated description:

I was transferred to Oniga City, where there is a custom of sacrifice.
I picked up a female employee who was my type at the city hall.
We had a nice date and made an appointment for the next date. ......

The story of how a serious city hall employee is turned into a perverted bitch as a result of training with aphrodisiacs and whores.