After Zhu Zaihou's death, the prince was young, and Li Yanfei, the prince's mother, was temporarily in charge of state affairs. Li Yanfei's father, Li Liang, decided to usurp the throne and made a plan: to appoint a temporary emperor until the prince grew up. Li Fei wanted to follow it, and Li Liang ordered civil and military officials to sign it. Veteran Xu saw through the trick and stopped it, and called on other officials to refuse the visa, but only the assistant minister of the Ministry of War supported Xu. At the court, Xu's men advised that they could not give way, but refused. They were driven out of the court and declared that they would never be hired. Li Liang showed his true colors and put Li Yanfei in limbo.

Xu Zhaoyan visited the imperial tomb in the evening and was deeply moved by the throne of the former king. Bai Yang's children led the troops to him. Idy went to the cold palace to rescue Li Fei.

According to historical records, most of the characters in the play are body double and Zhang Guan Dai Li. Fortunately, Two Gong Jin is a traditional opera and can be used as a novel.