Prehistoric: Reborn into Chaos, I Know the Secrets of All Things

If you knew the future, what would it be like? I am Xuan Yuan, a reborn person with the memory of the Chaos Demon God and the golden finger of "Heavenly Tips". I know which mountain top hides the innate spiritual treasure, I know which calamity can be avoided, and which saint will enter the game when. Every step I take is to seize the opportunity; every layout I make is rewriting the history!