Jiangyang, a ox-horse from the 21st century, had an accident while climbing a mountain. He traveled to a primitive tribe and awakened the system necessary for time travel. With the help of modern knowledge and systems, the tribe will grow step by step. But after walking out of the primeval forest, I discovered that the world is not that simple. The primeval forest is just a corner of the world. There is a more powerful civilization cultivating immortals outside, and this world is just a corner of the prehistoric continent.
