Starting as the Creator

"In the beginning of time, who passed down the tales? Who triggered the Cambrian explosion of species? And who caused the extinction of the dinosaurs? Why did humanity come into existence? In prehistoric times, who unleashed the great flood that destroyed the world? Who were the divine beings that Qin Shi Huang received, as recorded in 'Shi Yi Ji'? One unsolved mystery after another leaves people bewildered, until one day, modern humans understood, because... You have descended! ... 'Damn system, how did people find out about what I did???'"