Sun Shizheng is a highly respected traditional Chinese medicine doctor who runs Qingfeng Hall clinic near Donghai University. He is also a specially appointed lecturer at the university. Despite his senior age, he remains active and insightful. When Qin Ge brings a strange prescription, he recognizes its excellence and seeks its origin. When Old Master Xia arrives in cardiogenic shock, he diagnoses it as incurable but allows Qin Ge to attempt treatment. He is impressed by Qin Ge's methods and the miraculous recovery. He is open-minded about new approaches and shows humility in learning from a young man. He is the central medical authority in the story.
