C721 The Breakthrough Is at Hand

The huge amount of energy within the black crystal seemed to have found its target and rushed towards Zuo Feng's palm in an earth-shattering manner.

If it was Zuo Feng's fault, he could have pulled his hand back. That way, he could have cut off all the energy. However, this was only his guess. If he retracted his hand now, not only would his connection with the black crystal be cut off