Grandson of the Great Qian Emperor

Modern foot massage therapist Li Yi accidentally gets electrocuted and transmigrates as the grandson of the Great Qian Emperor. To change his fate of having his birth father, the Crown Prince, deposed and himself exiled, he binds the "Old Man Treasure Chest" system, earning rewards by exploiting Emperor Li Weimin's emotions. With modern wisdom and system assistance, Li Yi skillfully navigates the court, outwits the Prince of Wei, resolves the smallpox crisis, promotes sweet potatoes and cowpox vaccines, and cleverly solves the famine relief problem with bran. Finally, he exposes the Prince of Wei's rebellion, secures the Eastern Palace, is enfeoffed as the Grand Successor, and begins a new journey with the ambition to ensure everyone in the world has food and clothing.