Shen Zhaozhao, a vampire princess who has been sleeping for a hundred years, entered the palace disguised as the legitimate daughter of the Zhenguo Duke in order to find out the truth about the genocide. With the keen insight and self-healing ability of the vampire clan, she successively resolved the concubines' frame-ups, the queen mother's schemes, and the emperor's temptations in the harem, and was gradually promoted from a show girl to a noble concubine. In the process, she not only slapped the Green Tea Concubine in the face, overthrew the Poison Queen, and exposed the genocide plot of the Queen Mother colluding with foreign enemies, but she also went from mutual suspicion to the evil emperor Xiao Jingheng to running in both directions, and finally overthrew the decadent harem and achieved reconciliation between the blood race and humans.