Adult PC Game: Sei no Shoujo Bishoujo Gakuen 3 by Argonauts Archive

There is a consecrated world built on a small hill.
It was known as a prestigious girls' school with moral education based on the spirit of Christianity.

In a space far away from the world, the girls grow up without knowing the filth ...

But that was just the face of the front.
Behind the scenes, he ran a large-scale "mistress prostitution organization".

You (the main character) are the only guys at St. Emilia Jogakuin.
He is usually dressed as a woman and dressed as a sister, but
your job is not to serve God.

Train a beautiful girl who is being sold to a whore who likes her mistress.

Do you devote yourself to your work and finally "ship" the girl?
Or does her feelings change as she puts her skin on top of each other?

It's up to you to decide.