Prehistoric: the Devil Asked

Note on the introduction to this book: I will update this occasionally, and the period is uncertain. "What is this place and why am I here." All he saw was chaos around him. Suddenly, a ray of light came, and Su Tian fell into a deep sleep. Let's see how Su Tian makes his way in this primitive world. An introduction to this book: 1. The system is basically a decoration. There is no protagonist Niubi in Niu. The protagonist has several brothers, but they are not here. 2. This system is created by the protagonist, so this system is a bit humble, but I can make him awesome. 3. The protagonist has a female master who is not in the prehistoric times This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.