He is Ji Gang, the commander of the Jinyi Guards in the Ming Dynasty. After Zhu Yuanzhang died, he passed the throne to his grandson Zhu Yunwen, which aroused the dissatisfaction of King Zhu Di of Yan. After several plans, he decided to rebel. When he was walking to Linyi, he met an interceptor on the road. Ma wanted to serve under Zhu Di. Zhu Di readily accepted. This person was Ji Gang.

Later in the military camp, Ji Gang gradually gained the favor of Zhu Di because of his good observation of words and emotions, and transferred him from a soldier to his personal guard. This was a step to the sky for Ji Gang. He worked even harder to please Zhu Di and took good care of Zhu Di's diet and daily life, completely gaining Zhu Di's trust. Later, Zhu Di got the throne and became the king. In order to be able to closely monitor the ministers in the court, the king of the Ming Dynasty specially established the Jinyiwei department to spy on the news and eradicate dissidents.

Because this department only serves the king alone, this position of Jinyiwei must be filled by someone he trusts. Zhu Di gave this position to Ji Gang. Ji Gang, who became the commander of the Jinyi Guards, began to become unscrupulous. Relying on Zhu Di's trust in him, he began to collect bribes, and he would kill the courtiers who could not stand it. to flatter him.

Later, Zhu Di prepared a draft to enrich the harem and handed the matter over to Ji Gang. Taking advantage of his position, Ji Gang used his power for personal gain and first selected the most beautiful girls into his palace. Not only that, Ji Gang was ordered to inspect the home of a prince, and secretly took the prince's court clothes back to the house. After wearing them, he ordered his followers to call him Long Live. It can be said that he was arrogant to a certain extent. Later, what he did made the officials unbearable, and he reported his crime to Zhu Di. After investigating, Zhu Di was so angry that he cut Ji Gang into pieces and then executed him.