Modern physician Yun Jiuque transmigrates into a book as a short-lived female imperial physician. From the start, she stumbles upon an illicit affair between the emperor and his consort, putting her life on the line. Bound to the Mystic Healer Spirit Eye System, her right eye gains golden markings that let her see through meridians, detect poison, and heal injuries. She is forced to take on the task of saving the tragic yet formidable Imperial Preceptor. In a world where women hold power and men are subservient, men wear veils and women rule. She turns her medical skills into a path to success, using her sharp tongue to serve up face-slapping moments for the court officials. While improving acupuncture to save lives, she also investigates strange cases in the palace. Her master, Pei Xueyi, is aloof and proud. By day, he holds a jade hairpin to her throat as he teaches her; at night, he sneaks her candied plums. They save and cherish each other: she treats his strange poison, and he protects her. From mutual suspicion to healing one another, they ultimately join hands to rewrite their fates and rule the realm together.