The world was at 80 degrees below zero, and civilization on the ground collapsed in three days. When the survivor cut his throat to grab a bottle of mineral water, Zhou Qian was driving an underground shield machine to dig through the subway tunnel. On the seventh day of the apocalypse, he photographed the first alloy steel plate deep in an abandoned mine. While others were scrambling for leftovers, he had already installed a fourth-generation nuclear fusion reactor in a base of 3,000 people. One billion refugees froze to death on the night of the snowstorm, and thousands of lights lit up in the warm spring-like underground city. Someone asked in a trembling voice: With such a big city, do you want to be the emperor? Zhou Qian looked at the blueprint of the seventy-third city on the holographic screen and smiled lightly.
