Creating the World, Also Known as This Ancient World, Is Not Very Serious.

Carrying the prehistoric world on its shoulders, it is the most unorthodox prehistoric world in history. The protagonist has no strength, so he just cultivates in the ancient world, educates the ancient world about science and technology, cultivates immortals, modern lifestyles, and the story of the list of gods. With strength, the whole universe goes crazy. Refuse to be mentally exhausted and go crazy if something happens. I just feel comfortable writing it myself.