chapter 411 Sincerely convinced

Old Mr. Yinne stood up and looked at Michael in disbelief, his eyes widening.
That punch just now was so exquisite.
He believed that it was definitely beyond the reach of manpower.
He had practiced martial arts for nearly a hundred years, and his strength was limited to brute force, skill, vigor, and internal strength.
But in front of Michael, he found that his strength was nothing.
That was not a power that could be gained through training!
There must be something fishy.
Old...