What? Chiyou Is Actually Me?

At the moment the laboratory exploded, Lin Feng thought he was done for. When he opened his eyes again, he found himself among towering ancient trees and the fangs of saber-toothed tigers. Using his knowledge of science and engineering, he learned to make fire by drilling wood and smelted bronze, earning the worship of a primitive tribe as a god. Then he noticed that the tribe’s warriors bore the Chi You totem on their foreheads, while across the Yellow River, a leader of the Ji clan had already allied with the Jiang tribe. He suddenly realized that he had become Chi You, the legendary Lord of War from Chinese mythology!