Before the Lich War, I led the human race to the west

Story of: Before the Lich War, I led the human race to the westBefore the war between witches and liches, the demons used the blood of millions of humans to refine the witch-killing sword! Ren Huang traveled through time and awakened the system, but he was asked to find a safe place for the human race to survive. Looking at the four realms, they are all the butcher knives of the demons! Nuwa doesn't care, Taiqing lets it go, how can the human race have a safe place? Ren Huang chose to lead the tribe to the west to survive! If this world does not allow the human race to have three inches of land, then use the sword in his hand to kill a prosperous world for the human race!