After failing to reclaim his authority as the emperor from the eunuch, Emperor Wenzong of Xing passed away. His brother Qi Yan succeeds the throne with the help of the eunuch, now Duke Chu and Godfather to Qi Yan. With influence over Qi Yan, Duke Chu still holds control over the court. Years later, Chen Ruo Yu becomes the 23rd Sword Bearer of the Purple Clothing Bureau, tasked to serve the emperor and nation. (Source: cassiopeiastars at MyDramaList)