Responses
I think I know which one you're talking about, this is not that one manga no. Here MC essentially turns up to work for the ML but something gets twisted with the rules of shamanism so now ML gets all hot and bothered after every job, MC takes care of that. They are very sweet and there's mutual consent!

Is this the one where the MC unfortunately has to have sex with the demon inside ML? Like it’s not even the ML inside ML’s body? Or this is the wrong one. Don’t tell me the right one either!!! OR U WILL BE CURSED.
If this is that one, did they get rid of it