In the eighteenth year of Yuan Qi, a sudden change occurred in the palace of Prince Jing, leaving only the young prince Le Luli who was practicing martial arts outside and Yue Qingyin, the adopted daughter of Prince Jing's mansion who was sent away in a panic. The two had no choice but to start planning to seize the palace and kill their enemies. At the same time, Yue Luli gradually discovered his differences with Yue Qingyin, and her life experience slowly surfaced...