Twelve years ago, Zhan Zhao was buried in Changhe. Twelve years later, a child named Zhan Siyu came to Kaifeng Mansion. The face similar to that of Bai Yutang and Zhan Zhao attracted the attention of Bao Zheng and others. Zhan Siyu also heard part of what happened twelve years ago from Wu Shu. Only then did he understand the reason why Mu Ye asked him to come to Kaifeng. In order to clear his father's wrongdoing, Zhan Siyu began to investigate the incident twelve years ago.