(Same as before, I can't write a proper synopsis, so I'll start with the world setting.)
"Heaven" is a mysterious region that stretches upward from the ground into the sky. A sacred place that countless adventurers yearn to reach, it offers treasures, fame, and power, drawing people from far and wide.
"Heaven" is something that does not exist in the mortal world. Once people climb up into it, if they try to descend and return to the world below, Heaven will stop them. The threat comes not only from all kinds of ferocious creatures, but more fatally, from Heaven's mysterious power.
First Layer:
Descending to the human world: mild dizziness and nausea.
Second Layer:
Descent pressure: severe nausea, headaches, and numbness in the limbs.
Third Layer:
Descent pressure: impaired balance, auditory hallucinations, and visual hallucinations.
Fourth Layer:
Descent pressure: excruciating pain throughout the body, with blood flowing from every orifice.
Fifth Layer:
Descent pressure: loss of all sensation, confused consciousness, and intense self-harming behavior.
Sixth Layer:
Descent pressure: the body collapses, and humanity is lost…
Seventh Layer:
Descent pressure: certain death…
Eighth Layer:
