Zhou Langzhong is a physician who was present during Tan Tinglian's childbirth. He was amazed by Jiang Yao's acupuncture skills in stopping the bleeding and wished he were a woman so he could observe her techniques more closely. He confirmed that the medicinal duck soup contained appetite-stimulating herbs including Hawthorn, White Cardamom, Chicken Gizzard Membrane, Green Citrus Peel, Licorice, and Ginseng. He marveled at how Pei Shaofuren was able to detect the harmful herbs simply by smelling the soup. His confirmation helped expose Shen Kuan's malicious plot against his daughter and validated Jiang Yao's medical expertise. He was initially present to treat the difficult childbirth but was overshadowed by Jiang Yao's superior skills.
