Chapter 522: Nine Suns Thunder Dragon Pill

Bang! The demon king's head exploded instantly. Ronin Austin quickly extracted its demon spirit and swallowed it, starting the refining process. The spirit of a fourth-level demon king was enough to boost him to a second-level battle king.

With the pure power of thunder on his side and the mystical transformation of the Dragon Technique, the demon spirit was quickly refined. The True Dragon Fire and Thunder Fire joined forces to completely cleanse the impurities within, leaving only the purest...