While fighting, Chu Fei gradually realized a problem. The damage of this kind of attack can be controlled even though it uses the real Qi attack of fist shadow which is launched by the extremely fast attack.

the faster you play, the stronger the frenzy of this energy. Comparatively speaking, the more destructive it is. On the contrary, the slower you play, the less frenzy it is, and the less destructive it is.

after understanding this, Chu Fei is even more surprised to find that with the amount of energy released and the speed of boxing, this is a new unique move!

I didn't expect that under the danger of...