Prehistoric: Trapped in the Depths of Chaos, with the Devil Next Door

When I woke up, I was floating in the chaotic void, with no up, down, left, or right, no hunger or fatigue. After confirming that it was the source of prehistoric times, Pangu started counting down the time to open the sky. In my previous life, I was an orphan and was used to being alone. In this darkness, there was only me and the three thousand demon gods who had not yet awakened.