The male protagonist Chen Han was framed by his wife Su Wan and the Su family in the seventh year of the apocalypse, and was pushed into the ice abyss in the extreme cold of minus 70 degrees. Reborn one month before the end of the world, retaining complete memories and seven years of survival experience in the end of the world. Through the memory of the past life, the location of the secret warehouse left by the Japanese army underground in the city was locked - this was an important stronghold that was only discovered in the third year of the end of the past life. Overcome many obstacles to enter the abandoned military area and discover the entrance to the warehouse. The scale of the warehouse is far beyond imagination. It not only stores a large amount of military supplies left by the Japanese army, but also has a complete underground ecosystem and geothermal energy system. Chen Han began to secretly transfer materials from the warehouse and transform the warehouse into a multi-functional shelter "Deep Cold Fortress". During this period, Chen Han discovered that the Japanese warehouse concealed a deeper secret—research data on climate weapons, suggesting that the end of the world may not be completely natural. At the same time, it was discovered that the Su family was in secret contact with a multinational energy company, and seemed to know in advance that the end of the world was coming...
