In order to avenge the tragic death of his sister Wei Yun, Wei Anning went deep into the palace as a beautiful girl. With her intelligence and agility, she approached and stayed with the ruthless queen. From then on, she started her revenge plan step by step. She cleverly used strategies to eliminate the queen's minions, and also used the help of the imperial eunuch to get close to the emperor Xiao Jing. In the dangerous harem, she repeatedly saved the day at spring banquets, autumn hunts, and the Queen Mother's birthday banquet. She successively defeated opponents such as Aunt Gui and Concubine Shu, and was promoted from a palace maid to a title. The layers of calculations between the queen and her mother's Zhao family, the overt and covert attacks of the harem's concubines, and the secret interference of the former dynasty's forces have all become obstacles on her road to revenge.