The Demon World Invades, I Use My Martial Arts to Kill the Demons and Immortals

The demon world invades, and the world is in chaos. Wu Sheng suffered from a strange disease since he was a child. His body was normal but he showed some disabilities. Until he encountered a tiger demon while sweeping his parents' graves. After being killed by the tiger demon, he merged with the remnant soul of martial arts from another world. Not only did his body return to normal, but he also gained countless martial arts experience. From then on, he began to practice martial arts, overpowered the demons, and killed all the demons and immortals. He even fought all the way to the end of the demon world...