In the star calendar year 8172, the earth entered the seventh great biological evolution.
The geomagnetic field disappears, mountains collapse, and seas and rocks rot.
Monsters that once existed only in anecdotes are spread all over the world.
In the star calendar year 8222, aliens invaded the earth, and the surviving humans escaped from the earth.
In the star year 8315, aliens promulgated the "Earthling Atonement Law"
From then on, all surviving humans became sinners who destroyed their homes.
...
In the north of the north there is a mysterious mountain,
That's where my god fell.
Fu Chun×Chang Yue
#You are an early spring given to me by fate#
# Full text is undergoing major revision#
Purpose: Save the world