A girl watches her entire family executed for treason she didn't commit. She survives, hides, and spends years becoming someone dangerous enough to walk back into the empire that destroyed her. This isn't a revenge story dressed up as historical drama, it's about reclaiming your own name after the world tries to erase it. Chang-Ge's journey moves between intimate character moments and sprawling political intrigue without ever losing sight of what actually matters: a daughter rebuilding herself from ash. The animation carries real weight in quiet scenes, making her smallest victories feel earned. By the end, you understand why she fights, not for vengeance, but because surviving wasn't enough.

Chang-ge has lost everything. After a coup known as the Xuanwu Gate Incident, her father is killed and her mother takes her own life, and the princess Yongning is declared dead along with her family. She escapes the palace full of bitterness, takes on the identity of a young man named Li Chang Ge, and heads to the Shou province with the aim of one day leading troops back to Chang'an to avenge her parents. Relying on her wits, she earns the Shou emperor's trust and rises quickly through the military ranks as a gifted strategist, finding loyal comrades and dangerous enemies along the way. The ONA runs 16 episodes, mixing action, adventure and drama in a tale of disguise and revenge.