Unique in the World

The ten levels of martial arts, the first three cultivate skin, bones, and meridians. The middle three cultivate flesh, blood, and five internal organs. The last three connect tendons, transform bone, and change marrow, reaching the peak of the tenth level.,With a punch, the heat inside him boiled over, surging into his right hand. It was as if a phantom tiger appeared behind Lin Yun, roaring furiously.,“This is inner strength! The cracking and resonating of bones generate inner strength, this is the sign of breaking through the second level, I have reached the third level of martial arts!”。