Prehistoric Technology Expert

Due to the global disaster, the unwilling patent agent Yi An was reborn when Nuwa created humans and became an innate human race. In the ancient world where powerful powers were everywhere, as a being at the bottom of the food chain, protecting the survival of the human race and leading the development of the human race became Yi An's daily life. Let's watch him gain merit and become a saint through his scientific research; let's watch him hide in front of the dragon and overturn the chess game of the Gods; let's watch him help the tunnel and humanity recover, and the three paths work together to expel the parasitic eel in the prehistoric times - Hongjun!