When a female doctor from a modern medical family encounters a medical dispute incident, she wakes up to find herself in an unfamiliar ancient royal palace, becoming an abandoned royal concubine. The twists of fate make her mistakenly believe that the prince is her long-lost lover, leading her to hide her identity and become the royal concubine. However, the life of the royal concubine is not as beautiful as she imagined, as she suffers various plots and abuses from the other concubines, ultimately leading to her death. Refusing to succumb to her fate, the modern female doctor uses her knowledge of modern medicine to expose the affair between the concubine and the royal physician, causing the prince to deeply regret his actions.