Zhao Fu felt that the Six Desires Celestial Art that he cultivated was about to break through. The Six Desires Celestial Art was an Art of Celestials, so it was naturally quite profound. After cultivating it for so long, Zhao Fu had only reached the peak of the third level. In total, it had 24 levels.
Just then, Zhao Fu had lost control because he was about to break through to the fourth level. His cultivation had most likely been affected by the Platinum Dragon Phoenix, which was now helping him break through.
There were two cultivation methods for the Six Desires Celestial Art: One was Suppressing Desires, which produced celestial qi, and the other was Indulging Desires, which produced demonic qi.
Zhao Fu walked the second path, so he produced demonic qi; it could be said that Zhao Fu was a Demonic Cultivator.