C851 You Don't Have the Internal Strength

"Phew... Phew..."

The man in black stopped in front of Zhang Xiaolong once again. However, this time, he was panting heavily. After so many rounds of crazy attacks, the Internal Strength in his body had almost been exhausted.

"This is impossible, this is absolutely impossible! Have you reached the highest realm of the Internal Strength?"

The man in black looked at Zhang Xiaolong in disbelief