The peak battle between Prime Emperors had almost destroyed the entire Broken Cliff mountain range.
In the past, Broken Cliff was surrounded by mountains and the terrain was low. Thousands of years worth of resentment was trapped there and couldn't be freed. As the mountains near Broken Cliff were destroyed and the mountain collapsed, the resentment in Broken Cliff immediately spread into the world, like a pot of boiling water being lifted in an instant.
Resentment spread throughout the world.
This contained the resentment of a Prime Emperor.
Most of the grievous energy had their own consciousness. They surged between heaven and earth, using their grievous energy to wantonly destroy this world. The Cangyuan Empire, which was closest to the Broken Cliff, received the most damage.