Shen Zhao, an orphan girl from a teahouse, was forced to marry into the royal palace instead of the prime minister's daughter in order to find out the truth about her family's destruction, and became the "Yaoyin" princess of the cold-faced general Lingyuan. On her wedding night, she accidentally activated the secret box left by the late queen and obtained the "Medical Mastery System", which contained a century-old plan to revitalize the family and unparalleled medical skills. On the surface, Shen Zhao was involved in the internal strife in the palace, but secretly he used his amazing medical skills to detect serial murder cases in the capital, and teamed up with the oppressed palace maids to form an intelligence network "Quick Tongue" that spread throughout the government and the public. In the process of testing each other with Lingyuan and joining forces to break the situation, she gradually uncovered the mystery of her Xinglin family's life experience, and finally discovered that the truth about the destruction of her family and the sudden death of the late emperor all pointed to the current person in power.
