Evil

The old man gazed at David with a thoughtful expression. David's capability had exceeded his expectations.

For a kid who wasn't even twenty years of age to have practised two high earth grade techniques, it revealed just how powerful his comprehension ability was.

It was a pity comprehension couldn't be forcefully taken otherwise, he wouldn't have used this method to prolong his lifespan just to comprehend the heaven realm technique.

A crazed expression flashed briefly before disappearing without a trace. He shook his head slightly and ignored David entirely. As for David successfully comprehending the heaven grade technique, the thought hadn't flashed in his mind even for a second.