In 2045 AD, abnormal solar activity caused global temperatures to plummet, and a disaster called "Eternal Night Frost" swept across the earth. Human civilization fell apart amidst the extreme cold of minus 80 degrees and the ravages of mutated creatures.
In the last life, Shen Cong'an, as a top mechanical engineer, spent all his efforts to build the strongest defense system for the base. However, at the last moment, he was betrayed by his trusted companions and froze to death outside the gate he designed.
When he opened his eyes again, he returned to the three months before the disaster.
This time he is no longer the silently dedicated engineer. He sold hundreds of billions of property, bought an abandoned underground nuclear bunker, hoarded supplies like crazy, and used the memories of his previous life to build an indestructible "mechanical fortress."
While everyone was shivering in the cold wind and begging for a sip of hot soup, Shen Cong'an was sitting in the constant-temperature fortress, drinking red wine and watching those who had betrayed him struggling in the snow on the surveillance camera.
But this is not enough. He has to redefine the rules of "survival" in this frozen world in this life.