I, the Taoist Ancestor of the Human Race, Have Distorted the Entire Myth

Traveling through the wilderness, Yun Xi became Tiandao's "savior tool". The system asked her to spread the fire, establish the way of humanity, and deal with the great powers. Dao Ancestor Hongjun looked at her differently, Demon Ancestor Luo Hu regarded her as his only obsession, and Tongtian Cult Master protected her to the end. She was favored all the way, led the human race to change their destiny against nature, combined immortality cultivation with technology, and ruined the entire prehistoric history. But as she was saving her, she suddenly realized that this ancient place looked more and more like her hometown. The savior is actually myself. Saving the prehistoric world is equivalent to saving the original world?