It is year twenty-five of the Yuantai Era of the Great Zhou Empire. The renowned Marquis of Jingning, commander of the Beiyan Cavalry, Fu Shen is injured on the battlefield at the northern border. Returning with a broken leg to the capital, Fu Shen learns that the emperor has conferred a marriage for him--with another man. To make matters worse, Fu Shen's spouse is his political nemesis: the famed Imperial Investigator of the Feilong Guard, Yan Xiaohan.