Idiot, Is Your Sister Pretty?

Five years ago, Yue Tian suffered a catastrophic disaster. His parents died, and he was beaten into a fool. Fortunately, she took him in and he barely survived. Five years later, he accidentally inherited the Taiji Medical Immortal. Not only did his brain improve, he also mastered supreme medical skills and peerless ancient martial arts. In order to take revenge, he still pretended to be crazy and secretly accumulated strength. Starting from a small medical clinic, he gradually grew into the most mysterious ghost doctor in the underground world. He is in charge of the Divine Needle of Creation, and he can speak of life and death! He swept through all the major families, creating a blood feud and repaying it with blood!