A laboratory explosion caused Lin Xiaoman, a modern medical student, to travel to the Tang Dynasty and become the eldest daughter of the Lin family medicine house who was deeply involved in the "Quack Doctors Killing People" scandal. Faced with a child who was poisoned by cinnabar, she turned the tide with her modern medical knowledge and shocked everyone by using a silver needle to test for poison. Pei Yan, wearing a black brocade robe, came with a jade pendant and a promise, inviting her to face the scrutiny of the Imperial Medical Office.
In this era when medical understanding is completely different from modern times, Lin Xiaoman breaks the shackles of tradition time and time again with his superb medical skills, but he is also involved in many conspiracies. The silver needle cuts through the fog, and the antidote contains secrets. From the crisis in Yaolu to the undercurrent in the palace, she takes care of every step. During the thrilling medical journey, she and Pei Yan supported each other, using the jade pendant as a matchmaker, and their love quietly grew in the shared hardships. See how the modern medical mind shines in the Tang Dynasty and compose a romantic legend that spans time and space.