Vampires are totally fictional, so are werewolves and zombies. That's a no-brainer. But, what about demons? Yep, that's right. Demons. A young polykin named Amber Korpse makes the mistake of summoning Andy Biersack, a demon, when she tries to learn how to play guitar. (Who knew Andy could STILL play the guitar?!) Of course, Andy's aid comes with a dear price for our favourite bigender.