Not a Bride, a Blade!

Someone inside the Yang army sold out its commander during a campaign in the desert. She was left for dead, lost her memory, and was found by a scholar named Lu Zicheng, who took her in. She lived under a new name, worked as a dancer, and kept him for three years while he studied. On the day he was made a county magistrate he turned on her. He and Fang Chuchu, the prefect's daughter, drugged her and framed her, and took the golden spear that was the token of her family's command. Her memory came back. She dealt with Lu Zicheng, recovered the spear, and found her father, the old General Yang, alive. What had been done to her family had been arranged by the Nine Thousand Years, the eunuch who held the court. She joined with the Third Prince, Xiao Han, against him, and was made a general with the defence of the eastern empire in her hands.