Who Needs to Break a Big Stone from Their Chest to Practice Martial Arts?

[Funny system + Funny male protagonist] I never expected that I, Lin Fan, would actually travel through time! He also traveled to the fantasy world of martial arts. Fortunately, I have a system, and I'm going to counterattack! Hahahahaha (͡°͜ʖ͡°)✧ What? You say you are a funny system? If you are a funny person, why are you dragging me along? (╯‵□′)╯┴─┴ No, I am definitely not trying to be funny! ＼(`Δ')／ Mua~ It smells so good! (￣▼￣) Martial arts realm: five realms of tempering the body (purifying skin, purifying flesh, purifying bones, purifying pulses, purifying internal organs), bright energy, dark energy, transforming energy, holding pills (dan energy, gang energy), three realms of martial arts (not confusing, cave mysterious, knowing destiny), heaven and human.