Lu Yi is a cold, ruthless and authoritative high-ranking officer of the Ming Dynasty's Jinyiwei (also known as the Brocaded Guards for their elaborately embroidered uniforms). The Jinyiwei are part of the Emperor's elite bodyguards that also serve as the secret police, and Lu Yi is one of the best at his job.
He meets Yuan Jin Xia, a smart, feisty and tom-boyish female officer from the Police's 6th Division, and they
