Returning to the Wilderness After Living for Thousands of Years

Civilization was destroyed and humanity was nearly extinct. The humans at the bottom will not know what those sects and aristocratic families did to cause this situation. Now they can only try their best to hide in the city and dare not take a step out. Thousands of years later, the world has recovered and humans have resumed their spiritual practice. However, things have changed outside the city. The changes in the environment over the past ten thousand years, the ruins left by the sect ten thousand years ago, and the magnificence that no human being has ever appreciated after ten thousand years are all re-presented in front of mankind.