When nuclear sewage quietly changes the oceans and atmosphere, it brings not mutated monsters as imagined, but an absolute cold that sweeps the world. In just a few years, the fire of civilization was quickly extinguished in the extreme cold of tens of degrees below zero, and the world became a white purgatory of survival. Food is the new currency, warmth is the ultimate luxury, and human nature is torn to pieces in the face of the survival instinct. And on this desperate ice field, a steel fortress brightly lit and as warm as spring has become a legend that everyone covets but cannot touch.
