The world does not end in the flames of nuclear explosions or the roar of zombies, but in a silent "cognitive collapse" that quietly disintegrates.
An unknown level of containment failure occurred in the former "Civilized Containment Zone" A-19, and a cognitive pollutant called "fog" swept across the world. The logic of reality has been tampered with, and human common sense has become the most deadly poison. Those who look at the stars will fall into madness, and those who follow physics will be swallowed up by paradox. Cities turn into monstrous jungles of flesh and steel, and monsters are born from twisted shadows and delusions.
Chen Mo, the special archivist, received an encrypted garbled message from the future three days before the disaster. With his extraordinary logical analysis ability, he deciphered this doomsday "prophecy".
The prophecy did not tell him how to fight, only a list.
While everyone was frantically hoarding food and weapons, Chen Mo was depleting his family wealth to buy seemingly useless things: gold nuggets of absolute purity, perfect spheres, flawless crystal diamonds, oracle bone rubbings containing the oldest information, and a "logical singularity" server that can isolate all information. What he wants to hoard is not materials, but "truth" and "concepts" themselves.
When the doomsday came, when the survivors fought for a piece of bread and killed each other for a bottle of water, Chen Mo huddled in the underground shelter he armed with "absolute concepts" - the "Ark of Truth", and became the only sane person in this crazy world. The "system" he possesses is exactly this "truth materialization device" that can anchor reality and refuse to be contaminated.