Chang Ge Xing

In the aftermath of the Xuanwu Gate Incident, Prince Li Jiancheng and his sons, save for one, were eliminated. Only two of his daughters are mentioned in historical records. One of these daughters, Princess Li Changge, discovers her mother's suicide and father's murder, leading her to flee the palace. Driven by bitterness and a desire for vengeance, she disguises herself as a man. Her goal is to raise an army and return to Chang'an to avenge her parents. The princess is also driven to understand the complex and unexplained relationship her parents had with Li Shimin, the new emperor. The anime follows her journey as she navigates the dangers of her new life and plots her revenge.