C21 Mercenary land

There were even some who wanted to attack Yang Kai, but at this moment, their feet were trembling as they retreated backward. They didn't even dare to attack Yang Kai anymore.

And in a short half an hour, on the martial stage, besides Yang Kai, the rest of the youths were lying on the ground, in so much pain that they couldn't even get up.

"This guy's strength is really too strong