Zhu Shou wakes up one day to find himself transported to the Hongwu era of the Ming Dynasty. To his shock, he discovers that he has become a dissolute young man suffering from a brain disorder. After calculating the timeline, he realizes that Crown Prince Zhu Biao is about to die prematurely. He quickly discusses a major matter with the grandfather who has always looked after him. "Old man, Crown Prince Zhu Biao is about to die! We need to run away right now!" These words leave his grandfather utterly stunned. From then on, whenever he has free time, his grandfather asks Zhu Shou about important matters of state. Zhu Shou thinks his grandfather is meddling in things that do not concern him, but one day, when his grandfather appears wearing an imperial robe, he is dumbfounded. "What? My grandfather is actually Zhu Yuanzhang, the founding emperor of the Ming Dynasty?"