From the very beginning, who spread the Dao? Who caused the Cambrian explosion? Who led to the extinction of the dinosaurs? Why were humans born? In prehistory, who brought about the great flood that destroyed the world? Who is the divine being that Qin Shi Huang met in the Records of拾遺? One unsolved mystery after another leaves people puzzled, until one day modern humans understand, because... You have descended! ... "Trash system, how did people find out what I did???"