Nuclear winter is coming, and the world is plunged into a frozen hell. The temperature plummeted to minus 80 degrees, 95% of the creatures on the surface were extinct, and the survivors could only survive in abandoned underground facilities. Sun Yan, an ordinary young man with a tough tongue but a warm heart, awakened in an accident the "energy conversion system" - which can convert any material into survival resources, but every conversion will cause uncontrollable natural disasters.
