The earth still exists, but it is no longer the beautiful and suitable earth it once was.
Both the ocean and the land are covered by "black soil" at this time.
Those who survived called it so.
Anyone who comes into contact with "black soil", no matter whether there is life or not, no matter the size or shape, will disappear directly.
Those who survived could only hide in shelters in the sky.
However, recently, "black soil" has a vague tendency to spread into the sky...
Purpose: Looking for hope