Knock out with one punch

Upon hearing this, Wu Chi roared like a wild beast and then moved.
As fast as thunder, his body left a shadow and punched towards Noah Chen.
Noah Chen did not dodge or evade, his face was calm, and he raised his hand and punched.
boom!
The two men's fists collided.
Noah Chen's body was as solid as a deep abyss and as huge as a mountain, not moving at all.
On the contrary, the martial arts fanatic felt a slight cracking sound from his arm bones. His arm bones were actually...