Kang Yao, an outstanding modern female military doctor, was in a trance due to the failure of the patient's operation and the medical troubles caused by her family members. She accidentally fell down the stairs and when she woke up, she saw a room full of strange people. Traveling to an imaginary dynasty, the background is similar to the Northern and Southern Dynasties, with constant wars and numerous small countries. Daye was in a state of internal and external troubles due to the four kings seizing the legitimate sons. Kang Yao's brother was killed by a poisonous arrow trying to save people. When the new emperor first came to the throne, his foundation was unstable, and smallpox was causing chaos in the country. The sergeants began to rebel because they could not get treatment. In order to save people, Kang Yao and the second and third generations of the Du family rushed to the front line, but accidentally had to lead the army on their behalf. The woman disrupted the government, and the etiquette and laws were not tolerated. The civil servants were in an uproar, but the generals rarely remained silent. The rise of Daye gradually began from this year. The heroes competed with each other, and the winner was king.