Xiao Zhaohua was falsely accused of collaborating with the enemy. In the court hall, she read aloud the imperial edict written by her father in public, causing an uproar in the palace. But before the edict was completed, it was tampered with and the truth was torn into pieces. The former deputy general Shen Zhiyan lurked patiently, the secret guard Huo Jiuniang protected him with his life, and the imperial physician Ning Zhilan passed down the secrets with the sound of the piano. However, her most trusted friend Cui Minglang was trying to take his place in the name of the imperial edict. She is no longer an abandoned hostage, but the lone blade of the one who holds the edict - the edict is not finished yet, the world is uncertain, and she wants to write the last stroke with her own hands.