The Qihuang Kingdom is ruled by women, yet Yan Lang, the head eunuch, desires to wander aimlessly through life and retire with honor by disguising herself as a man. However, when a new emperor takes the throne, Yan Lang's career plummets. Perplexed by the emperor's gender, Yan Lang begs for mercy, barely scraping by. The emperor administers a pill that pacifies her and offers to make her his empress if she obeys him. Yan Lang agrees to this arrangement to survive daily life. It isn't until the emperor reveals Yan Lang's true identity as a provincial commander, and a woman, that her cover is blown.
