Compared to external martial techniques, it was naturally more difficult to learn and master Internal Breath cultivation methods just by fighting. In fact, according to the understanding of ordinary martial artists, this was impossible.
This was because the Internal Breath cultivation method was mainly circulated in the martial artist's body. Even if it was displayed, they could only see the surface. If not for the martial artist saying it himself, how would others know how to circulate and use this cultivation method in his body?
If he wanted to know what an Internal Breath cultivation method was through a simple battle, it was naturally wishful thinking.
Chu Nan knew very well that this opponent had deliberately jumped out with such a cultivation method to deliberately make things difficult for him, but he was not afraid.