A serious illness caused by smallpox caused Zhu Xiongying, the eldest grandson of the Ming Dynasty emperor, to lose his memory and live among the people, becoming an orphan boy that no one knew about! Ma Sheng, a modern academic tyrant, traveled through the early Ming Dynasty and had the golden finger of a top library. By chance, he rescued the dying amnesiac grandson and took him by his side to educate him carefully. Teach him mathematics and geography, identify medicines and people, raise him to be innocent, pure, transparent and kind, and avoid the machinations of the deep palace. Ma Sheng lived in seclusion in the Chaoyang Palace, cured Tang He's old illness with his peerless medical skills, made clever devices to amaze the emperor, and stirred up the structure of the capital with his commoner body! Zhu Yuanzhang searched for the emperor's grandson to no avail, and visited the Taoist temple several times in person. He was full of preference for Ma Ying, who resembled his beloved son, and admired Ma Sheng, who was a genius. A storm in the court is coming, Queen Ma's deadline is approaching, and troubled times are coming. The master and the apprentice who are hiding in the mountains will eventually be forced into the situation to take charge of the Ming Dynasty!