C598 Killing the Greater Celestial Level!

Nie Feng trained in the Ancient Desolation Tower and comprehended the strongest mystical technique, Tai Yi Zhen Lei Yin!

Unknowingly, two years had passed. In the Ancient Desolation Tower, Nie Feng had meditated on the Tai Yi Zhen Lei Yin for two years and finally achieved a breakthrough to the Mastery Stage!

Furthermore, Nie Feng's cultivation had also improved greatly