This is a script that has been written, and humans are not players.
The sky shattered and the gods descended in a destructive manner. Within a year, the population of 8 billion dropped sharply to 200 million. The survivors discovered in despair that the gods not only brought death, but also "left behind" relics and cultivation secrets containing powerful power.
Using a mortal body to kill gods—such people are respectfully called "god-killers."