Yun Zhiyi, a top modern surgeon, once traveled through time and became an abandoned concubine in the cold palace. With her superb medical skills and insightful modern psychology, she not only managed to survive the desperate situation in the palace, but also unexpectedly discovered the secret hidden deep in the heart of the tyrant Yin Xuanji - he was poisoned by a strange poison, and she was the only one in the world who could cure it. From then on, she became the "drug" that he couldn't quit, and she became the only prey he wanted to keep in his palm.
