Home of the End of the World I Eat Very Well in the End of the World

Five years after Guyu gained space, the end of the world has belatedly arrived. Natural disasters such as extreme cold and extreme heat are just appetizers. When radiation spreads all over the place, plants and animals mutate, the angry Blue Star kicks off with an unprecedented earthquake, and the monsters in the center of the earth are about to wipe out mankind. How can we survive in this world that is frequently hit by natural disasters and man-made disasters?