Under the Ice Abyss

After the nuclear war broke out, the earth became a frozen hell of -90°C. As a Chinese engineer, Lin Qiong maintains the energy pipelines of the underground city "Kunlun" every day. When systems showed the geothermal core was rapidly failing, the coalition government announced the Deep Drilling Plan. He was forced to join a multinational drilling team to find a way out of the deeper strata. When the drill bit was about to be destroyed by overpressure, it accidentally drilled into a glowing crystal cave. On the rock wall, there are geometric characters that do not belong to modern humans.