Pei Xuan, the general of the Song Dynasty, was framed and charged with collaborating with the enemy, and was assassinated by the emperor's Jin Yiwei. His son Pei Zhao escaped for various reasons and moved to Chu State, whereupon he changed his name to Xu Zian. He was also involved in a case and met Fu Ziling, so they began to uncover the mystery together to find out the truth. Unexpectedly, behind each case, he was lured to show up.
Idea: It would be nice to have a money jar