Why do demons and abnormalities never cease in this world?
One reason is the Human Clan itself.
All cultivators, whether Daoist, Buddhist, or belonging to heresy and heterodoxy, no matter which path they follow, are in fact backup armies for demons and monsters.
Once their cultivation goes astray, they immediately become Evil Cultivators.
If they continue to mutate and fall, they will directly transform into irrational, crazed monsters, utterly beyond salvation.
Just like when Tao Qian first entered the Dao at Seeking Immortal Pier, and saw Hong Heihu before that slaughter. Although he had deviated in practicing the "Blood River Scripture" making him an Evil Cultivator, it wasn't until he was backstabbed by his own son that he mutated into a mindless Blood Beast brute.
Now, the Transcend Mortality Realm Demon, raging furiously and threatening Chenghuang Mountain, was facing the same situation.