This was outside a wrecked chiliocosm. It was also the second one found.
The first one was found 10 years ago. At that time, Jiang Ming directly descended from the Dragon Phoenix Heavenly Heart Bed. After discussing with Pan Wang, he allowed the Chaotic World Tree to devour the destroyed chiliocosm.
Back then, Pan Wang was extremely astonished when he saw the tree. It was especially the supreme power that was contained within the World Tree, which rendered Pan Wang dumbfounded and felt that he stood no chance against it.
This was the second wrecked chiliocosm they discovered. As soon as Jiang Ming arrived, he kept his avatar and started examining it.
The universe that should be vibrant, had become all withered, filled with endless aura of decaying and death. If a Great Overarching Golden Immortal were to step foot into it, he wouldn't even last a quarter of an hour before getting eroded to death by the overwhelming aura of decaying and death.