Demon Volume 2: 03/16/17
Demon Volume 2 by Jason Shiga explores more directly what it means to be a demon and how the process of possession works. Jimmy, though cornered, manages to escape and is on the run. The head of the OSS knows where he is going.
Jimmy, though, is in for a huge surprise. He learns that demons can see each other for who they are and not what body they're possessing. He also learns that the man he thought killed his daughter is actually now possessed by her!
This isn't going to be a series for everyone. I find it's an interesting comparison to Supernatural if the series were taken from Crowley's point of view.