Lin Yun pondered silently in his heart. As a sword slave, his cultivation time and resources were both hindered. For three full years, he had been unable to break through to the third level of martial arts. This original owner's comprehension was still a bit mediocre.,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.。