Demon Slayer

"Of course I want to go into Demon Slayer!"

His vision blurred as he was suddenly placed into a white room.

"Sorry, I left out some things! We need to explain the enforcer part, you are indeed enforcing girls to have sex but the moment you enter a world there will be standard sex rules put into place for a sex enforcer. The girls only have sex with you unless you tell them otherwise, but if you want to change something about the world just say it out loud and I'll change it! Alright, CYA!"

This time he actually blacked out, when he woke up he was in a random place on the Sagiri Mountain.