Mandala City Wushan Port.
Wushan Port connects to the entry and exit points of Mandala City's disposal sites numbered 71-80.
If people from the lower levels want to reach the upper levels, they can only pass through the recycling passage guarded by the upper-level people—but not everyone can get to the upper levels.
And the thing that divides the skies of the same world is named the "Sky Wall."
Since the disaster a thousand years ago.
The Chaoyang Empire stands on this barren land, rebuilding civilization again, and as the technological explosion happened, the once prosperous world of humanity has reappeared on this planet.
Towering skyscrapers and a burgeoning financial market have once again emanated human brilliance on this planet.
But such prosperity seems to be gradually deteriorating over time.
Ultimately, something changed after the cataclysm.