Global Distortion Begins When the Sun Disappears

The sun suddenly disappeared, Eight minutes and 20 seconds later, the sky suddenly turned into night. An hour later, the surface temperature began to drop significantly. Three to four days later, surface temperatures drop to below freezing. A week later, the surface temperature dropped below -15°C, and the surface began to freeze. A month later, the surface temperature dropped below -30°C, and a large number of animals and plants died. Six months later, the surface temperature dropped below -50°C, most of the surface entered a frozen state, the earth's biosphere basically died, and most organisms became extinct. A year later, the surface temperature dropped below -150°C, and the earth was completely frozen. The order is collapsing and creatures are becoming extinct. The top priority is to migrate to the warm underground. But the darkness brings a group of uninvited guests. Wanderers from another world, they crave all sources of heat. They are inhuman predators and poor people who have lost their hometown. Kill them to obtain "materials" that can be used to "transform" yourself. Or be killed by them and lose heat. "Dong dong dong" "Hey, is anyone home? You're warm. Can I come in?" [Material: Pseudoman Skin] [Type: Organ] [Calorie required: very low] [Is it integrated?