In the Chu Dynasty, the protagonist Gu Xingyao is the emperor's uncle. On the surface, he is a gentle prince who is obsessed with calligraphy and painting and does not care about political affairs. He has a gentle temperament and aloofness, and is regarded by everyone as a "useless uncle." In fact, his vest is far beyond everyone's imagination: he is the "Food God" who controls the world's food and grass and is as wealthy as the enemy, the "Sir" who secretly assists the prince and stabilizes the court situation, and the "Shadow Guard Commander" who is highly skilled in martial arts and can protect the emperor. The heroine is Shen Zhiyi, the prince's companion. She is smart and sharp. She accidentally discovers Gu Xingyao's small flaw and explores it step by step. In order to protect the heroine and assist the prince, Gu Xingyao's vests fall off one after another, which shocks the whole government and the public. Those who once despised him surrendered one after another. In the end, Gu Xingyao became the backstage pillar of the dynasty and worked with the heroine in both directions.