Eight years ago, the "Guihongtai Case" shocked the capital. Xie Tingyuan, the censor of Zuodu of the Metropolitan Procuratorate, was falsely accused of liaison with Beidi and trafficking in military rations. The Xie family was destroyed. Twelve-year-old Xie Mingyi was rescued by the old ministry and lived in the north, where he learned skills such as wound inspection and poison recognition.
Eight years later, the old military grain line at the border was changed, and people involved in the case died tragically one after another. Xie Mingyi returned to Beijing with the Hongyan Bronze Talisman and the remaining pages of the old account, hoping to find out his father's grievances and question the reason for the Manchu Dynasty's silence. On her first night back in Beijing, she rescued an old chamberlain who was being hunted, got involved in an old case again, and met Pei Zhaochuan, a young minister of Dali Temple who was highly relied upon by the emperor for his fierce tactics.
The two went from testing and using each other to investigating the case side by side and secretly falling in love, but they were torn apart by their stance and the government. As the investigation deepened, they discovered that the Guihongtai case was not a simple injustice, but a power sacrifice that spanned eight years and affected many parties including the East Palace, Bianzhen, and imperial power. In the end, Xie Mingyi is determined to clear the names of all those who have been wronged, and Pei Zhaochuan breaks free from the shackles of the Emperor's Blade. The two work together to overturn the old situation, seek innocence for the dead, and seek a tomorrow for all living beings.
