chapter 126 Dacheng

After the muscles are refined, the next step is to refine the tendons and bones. The difficulty of refining tendons and bones is ten times that of refining muscles! The reason is very simple, tendons and bones have no sense of touch. When they are roasted by fire, they can at most feel pain, but it is difficult to say how severe the pain is. In other words, Levi Shamrock could still control the temperature when refining muscles. But he could also control the temperature when refining tendons...