Demons

Demons are a mythical creature of evil, in a perpetual war for control over The Heavens and Hells. Particularly powerful Demons are known as Demonlords. These beings of great violence and destruction often command or control their own Demonic followers.
It is rumoured that Demons can exist outside of The Afterlife, with supposed sightings being taken very seriously by churches of The Enduring Gods especially. While some in the mortal realm may devote themselves to specific Demons, much like one would a God, this practice is greatly feared and heavily frowned upon across the Veil.