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 clash over a case that the both of them were involved in. Their paths continue to cross unpleasantly over a series of minor cases until Lu Yi was commissioned by the Emperor to secretly investigate the disappearance of funds that have been set aside for river repairs in Yangzhou. Part of the small team accompanying him includes Yuan Jin Xia, and as the two of them work together to solve the case, they find themselves uncovering a conspiracy involving high court officials while their feelings for each other slowly change from dislike to respectful friendship to love.