Davi was having a hard time believing what was currently unfolding before her eyes. Sei and Mr. Chen were fighting so intensely as though they were real enemies shocked her to the core. It was because, she never saw a real training like this making it hard for her to believe. They're fighting exactly like those supposedly impossible, choreographed fights that she only saw in action movies. Mr. Chen even has a gun and he's attacking while Sei seemed to be defending. And watching them at that moment, just made her heart raced, because no matter how she looked at them, they're fight was just too real and more than serious.
She could see just how skilled Sei was, he's even much better than Kaide whom she thought was the best. That moment, Sei was exactly just like a fierce deadly beast. And Davi never even imagined that he's at this kind of level that anyone who might see him this moment will surely think he really is a monster.