Global Demon Transformation

Refining a demon spirit, flying in the sky and burrowing into the ground!
In modern cities, with the awakening of spirit energy, humans were no longer the masters of civilization.
At that time, the sun could not be seen in the sky, and the land was covered by birds. The ground was dyed red with blood, and humans became stray dogs and food. It was truly hell on earth.
It was not until a martial artist with a wild imagination integrated the demon spirit of a dead demon beast into his dantian that humans avoided the fate of extinction.
Refining a demon spirit gave one the ability of a demon beast to fly in the sky and burrow into the ground. A dead person returned to the age of 18 because of a demon beast.
That day happened to be the annual Demon Spirit Awakening Day. On that day, he refined an evil spirit … an evil spirit, an evil and ominous existence!