禽兽超人第二季

In the final analysis, the inner strength of martial arts is a kind of human power, which is condensed from the body's qi and blood. Therefore, strong Qi and blood are the key to gathering the inner strength of martial arts. The qi and blood of the human body originate from the flesh, blood and bones of the body. This is also the reason why the first three levels of martial arts, the 'strength training section', are the foundation of everything....