"Who are you?" Ye Feng shouted

after waiting for a moment, he suddenly looked back and found an old man standing behind him. He was wearing a very modern old man. If Ye Feng didn't know that he was the expert who could transmit sound into secret, he thought he was a passing professor or something.

in a moment, Ye Feng concentrated his spirit to the highest level, because he could not feel the fluctuation of the internal power of the old man in front of him. This shows that the internal power of the old man in front of him must have reached the level of returning to the...