Demons

Earth, mostly residing in a small northern town which seems to have an unusually thin veil separating it from The Under

The outer reaches of the Under Realm, furthest away from The Queen, this is where the veil is the weakest and where access between Reality and the Under is easiest.

The center of the Under, where the Queen resides, and where all Demons originate. Lesser demons tend to make their way outward, while more powerful demons will remain closer to The Queen herself.