The Seventh Winter of the Extremely Cold Doomsday

The sun takes a nap, and humans want to be the sun themselves. In the first year of the disaster, the temperature in the northern city of Huachuan dropped by 23 degrees in one day, and the power grid was paralyzed. Under the order to evacuate southward, the entire city lost power. Jiang Xu, a thermal power engineer who was dismissed from the industry, walked back to the power plant against the flow of evacuating traffic. Before dawn, he turned on the lights again in half of the dark city. From then on, Huachuan had a new name - Fire City. When others are grabbing cans, he grabs engineers; when others are waiting for rescue, he generates electricity himself. The lights were still on and people didn't disperse. What Jiang Xu didn't know was that someone had secretly set a timetable for this extreme cold. And on the snowy field outside the city, a giant steel beast that ate electricity was staring at the lights of Fire City - it was easy to find if it was bright.