Thousand Demons Cult

Most demons might be stronger than the average humans and some are powerful beyond comprension... but no matter how strong, if they are singled out by a bunch of powerful human cultivators then they'd be in trouble.
Realizing the threat and after losing some of their own, those powerful demons decided to band together much like the humans did and create their own cult, the first and oldest demonic cult, the Thousand Demons Cult.

There's a myriad of natural-born demons in the world but not all of them are qualified to join the Thousand Demons... most tribes would still be affiliated to the Cult but only the strongest members would have the honor to become an official member, and due to this it can be said that each and every member of the cult is an elite demon capable of crushing most enemies on their own, earning their Cult the title of the strongest among the others, rivaled only by the Heavenly Demon Cult.