Dayu Dynasty, the thirteenth year of the Apocalypse.
She is Pei Qinglan, the first daughter of the late empress and the sister of the emperor. In front of her, she is the noble and cold eldest princess of Ling'an Town. Behind her, she is the masked general wearing a silver mask, wielding a sword and riding a horse, sweeping across Beidi.
At the age of 16, he was sent to guard the border. At the age of 19, he returned to the court with bloodshed.
She wields a sword to control the country, and she is in charge of the secret security organization "Tingxue Tower", just for the sake of her life, she investigates the shocking injustice of the tragic death of her mother in the palace ten years ago.
He is Si Yu, the regent of the late emperor Tuogu. He has all the power in the government and the public. He holds a heavy army in the capital and assists the young emperor to secure his throne. He is the true uncrowned king of Dayu.
The world feared him for being ruthless and indecisive, but no one knew that he had fallen in love with her at first sight since they first met her when they were young. He had tolerated her for ten years and guarded her secretly, just to wait for her return, protect her and avenge her injustice.
Traitors are hidden deep in the palace, knives are hidden in aristocratic families, foreign enemies are around, and old cases are mysterious.
She covers her face with a silver face and kills evil with a sharp blade;
He covers the wind with authority and protects with affection.
Purpose: Protect the country and strengthen the country