C1898 Space Diagram?

Gu Fei only had two disciples, one of which was Gu Zhong, and the second was Old Flood Dragon. Although Old Flood Dragon had already turned into a dragon, he was actually the weakest of Gu Fei's two disciples.

Old Flood Dragon had been in closed door cultivation for decades, and he had never come out. Even Gu Zhong had a breakthrough, and he was still in his cultivation grounds