Zeyu, a modern society animal, dies suddenly and becomes the cannon fodder of the King of Wu. At the beginning, he holds the king's card of the emperor's legitimate son and the prince's brother, but he is destined to kill everyone in the family. He decisively tore up the villain script, gave up fighting for the throne, hugged the prince, and determined to be a happy rice bug. From then on, there was a new Xiaoyao King in Kyoto, who occasionally raised his sword to kill corrupt officials, rode his horse to beat up enemy bandits, and settled down peacefully in the maelstrom of power and intrigue.