I Will Rebuild Gaowu in the Last Days

All paths are cut off, evil gods invade, and the surface of the earth falls. Humanity has been hiding underground for hundreds of years, with only martial arts barely surviving. However, due to depletion of resources, there are fewer and fewer extraordinary people with each generation. Chu Yun traveled back in time from a young age and grew up in the Ninth Underground Base. When he was eighteen years old, he obtained the last limit-breaking potion in Zukuli and became the last hope of the Ninth City. After breaking through the extraordinary, the system is activated. As long as the human race value is improved, resources, skills, buildings, and even passages to other worlds can be exchanged. Therefore, Chu Yun took the dying human fire and rebuilt the extraordinary civilization starting from the underground city.