At the beginning of the 22nd century, human civilization has reached the pinnacle of science and technology, but has also fallen into the abyss of desire.
The world's top biotechnology group, in order to satisfy the top rich's paranoid desire for eternal life, has spent decades of resources secretly developing immortality drugs. The medicine is centered on gene reprogramming, cell immortalization, and all-dimensional strengthening of immunity. It claims to be able to erase aging, eradicate disease, and achieve true immortality.
When the project entered the final stage of human experimentation, a sudden laboratory explosion completely leaked the unstabilized original solution of immortality.
Colorless and odorless genetic pollution particles spread with the wind, penetrate the atmosphere, and sweep across the world.
No one is immune.
Humans' genetic sequences, body structures, and immunity levels vary greatly, and the mutations caused by pollution have therefore gone to completely different extremes.
Some people truly achieve eternal life.
They no longer age, no longer hunger, do not need sleep, and their bodies are nearly immortal.
But the cost is tragic - teenagers and children stay in their current body forever, their bones, minds, and body functions are completely locked, and they can no longer grow up; all adult men and women lose their ability to reproduce, and the fire of civilization is completely extinguished in them.
And more people did not get eternal life, but their minds were torn apart by the medicine.
Consciousness collapses and humanity disappears, leaving only the most primitive hunger, greed and violence.
They are called wights.
Ironically, wights retain their full ability to reproduce and grow.
Instinct drives them to breed, expand, and hunt wildly. Their numbers increase exponentially, and they soon flood cities, crush order, and devour civilization.
The world collapsed overnight.
Concept: Human beings have broken through the life span limit, but are faced with the problem of being unable to reproduce.