It's a simple conflict of interests, really. They wish to keep their bodies, and it's her job to remove them from the physical plane. They don't like it too much, but then again, what demon does? I don't have a name for this character, but she's been something I've been sketching for a little bit. She's floating in kind of 'seeking mode', trying to find demons in the near vicinity. Forgive the blurred nature of the scan, I promise I'll get a better scanner sometime.