Civilization Leaves Behind Ashes, I Use Mathematics to Fight Against Nightmares

Civilization is passed down from generation to generation, and after the flames fade away, the residue left behind is the ashes. The dreams of all living beings intertwine and gather together to form a ruins of literature, and the remains of corrupted and distorted civilizations turn into nightmares, quietly eroding the order of the real world. There are countless people who are scattered around the world, picking up the fragments of burned civilization and smoothing out the spreading chaos. In the process of cleaning up the remnants of the times, their true hearts will eventually be slowly burned and deflected by the warm embers. There is never a set mission, just ordinary people walking in the ashes of civilization.