Priests, but more messed up.

Yeah, that's what exorcists were, and Adam was one of them.

"Mhh..." He groaned with exhaustion, slumping in his armchair after long day of exterminating demons, curses and other products of darkness, it was not an easy job.

However, in this world, a great advantage is the ability to claim a devil's spawn. It was helpful in the fight against other demons, and Adam's own demonic weapon – was you.