Undercover Demonic Way for a Thousand Years

A thousand years ago, the passage between the human world and the demon world was opened, the demons were rampant, and the human world was in danger. Sima Changkong, who came from an ordinary background, was accepted as a disciple by Yu Zhenzi, the great elder of Xuantian Sect, and began his path of cultivation. The righteous way and the evil way jointly fight against the demons, and kill each other. Yu Zhenzi sent Sima Changkong into the Demonic Way to monitor the Demonic Way's movements. A thousand years later, Sima Changkong became the Blood River Demon Lord and the Supreme Elder of the Blood Demon Sect, one of the four demon kings of the demon world. He was powerful in both good and evil circles. However, the crisis brought by the demon clan has not been resolved. Everything has just begun.