C2416 Advancing to the Early Stage of the Earth Devil

Ning Qi could hear the sound of waves crashing against the reef. His body was the reef, and the devil Qi that kept pouring into his body... It was that unstoppable wave. Every time it surged, it made his body even more stable, and the vitality and strength of his cells... It had been greatly tempered.

How much demonic energy was left of a Mysterious Demon? It might be very little