Zhu Zhanji, a deliveryman in a modern city, is obsessed with the history of the Ming Dynasty, and especially yearns for the turbulent life of the emperor's grandson. During a meal delivery, he complained about the contrast between his life and the emperor's grandson in the play. He was accidentally involved in a car accident. When he opened his eyes again, he traveled through time and became the newborn baby of Prince Yan's palace - the future Emperor Xuanzong of the Ming Dynasty, Zhu Zhanji.
From the warm swaddling clothes to the palace courtyard, Zhu Zhanji restarted his life in the Ming Dynasty with a modern soul. He showed extraordinary intelligence since he was a child, and was deeply loved by his grandfather Zhu Di, who taught him martial arts and martial arts personally. When he was three years old, he activated the "sign-in system" in his mind. Every day he signed in, he could get magical skills. The first sign he got was the "golden bell" and "iron cloth shirt". After that, he practiced hard at the royal martial arts training ground, from being hit by wooden sticks to resisting iron sticks. He even received advice from martial arts masters to incorporate body-protecting magic into his moves, and became a famous young prodigy in Beiping City.
In the first year of Jianwen, Emperor Jianwen cut down the vassals and forced King Xiang to death. Zhu Di pretended to be crazy and acted like a fool in order to protect himself. Although Zhu Zhanji was young, he was well versed in the art of concealment. The following year, the Battle of Jingnan broke out, and Zhu Di led his army southward. Zhu Zhanji accompanied the army to gain experience and witnessed the war and the iron horse. In the fourth year of Jianwen's reign, the Yan army captured the city, and Zhu Zhanji followed his father Zhu Gaochi to the Nanjing Palace. Under Zhu Di's careful training, he studied classics and history to govern the country every day. With the support of modern thinking and systems, he first showed his talents in the turbulent court. He not only wants to inherit the Ming Dynasty, but also wants to use the power of the system to rewrite history and create his own legendary era.