This impact destroyed human civilization, society, and nations. In such adversity, the resilience and tenacity that humans have developed over millions of years of evolution finally came to the fore. The surviving humans gathered together and, in incredibly difficult circumstances, built isolation barriers.,From afar, the massive ring-shaped city, divided into three levels—upper, middle, and lower—basked in the sunlight. Most of the buildings were three stories high, arranged in a staggered pattern from bottom to top. Except for the areas near the outer wall that couldn't be bathed in sunlight, the entire city resembled a sun in the night, dazzlingly bright.,One of the new substances brought by planetary impact, humans extracted some beneficial substances from it and successfully extended human lifespan. However, after some people were inoculated with the new substance, some people suddenly mutated, becoming mutants with supernatural powers, just like this big man, but only a small probability.。