The princess of the former dynasty, Li Zhaoning, was adopted as a hostage by the general's palace of the current dynasty due to the ruin of her country and her family. She was aliased as Ye Wantang and pretended to be a sick and frail legitimate daughter to survive. In order to take revenge, she secretly learned the ancient formations, the tactics of counselors and the art of Qihuang, and sneaked into the palace with a triple vest. After entering the palace, she first defused the Queen Mother's difficulties with her sickly appearance, then used her identity as a counselor to help Emperor Xiao Jingheng solve the political conspiracy, used her skills as an array master to break the Queen's curse formation, and even used her identity as a medical woman to save the prince from the brink of life and death. As the vests were exposed one by one, her identity of the former dynasty was also revealed. In the end, she relied on the plan to make the emperor admit the crimes of the previous dynasty, overthrow the queen's power, achieve revenge, and join hands with Xiao Jingheng to protect the country.
