Caiyu Realm, the former immortal sect ruins of Demon-Sweeping Plain.
Before this world had completely fallen into a demonic domain, Demon-Sweeping Plain, with its thin spiritual energy and barren resources, had become this realm's last pure land, gathering more than ten million human immortals and mortals, as well as strange spirits and other races.
At that time, all surviving powers had been consolidated into a single immortal sect under the external pressure of extermination. To resist the Demon Calamity, the sect had carried out all manner of hair-raising experiments. Countless cultivation methods and demon-slaying measures had emerged one after another, yet before the absolute crushing power of the Heavenly Demons, every effort had seemed pale and futile. In the end, the Heavenly Demons still conquered the place, turning it into a demonic domain.
Because Demon-Sweeping Plain had originally been rather barren, few Native Heavenly Demons were born after it became a demonic domain, and its Demonic Baleful Qi was comparatively sparse. To high-ranking Heavenly Demons, it was hardly a "Blessed Land for cultivation." Thus, compared with the other regions of Caiyu Realm, the Heavenly Demons here were somewhat lacking in both numbers and strength.
As far as the eye could see, only sparse Native Heavenly Demons wandered through the desolate, ruined immortal sect remains.
Every so often, a first-rank Native Heavenly Demon would be born from polluted mountains and soil, trees and grasses, underground mineral deposits, vapor, clouds, and mist.
Since no other living beings besides Heavenly Demons remained in Caiyu Realm, these low-ranking Heavenly Demons had no flesh and blood to feed upon. They could only draw in Demonic Baleful Qi to strengthen themselves. Moreover, lacking demon-tainted bodies, they had no way to transform into Mutated Heavenly Demons. For their entire lives, they could not break past the peak