Eight-year-old Zhu Xiongying awakened the memory of the eldest grandson of the Ming Dynasty in a coma. When he was about to die, he accidentally opened the door to modern time and space. He threw a tablet of antipyretic medicine and forcibly brought the royal grandmother, Queen Ma, back from the gate of hell. Ten years later, when Prince Zhu Biao's life was also hanging on a thread, the door to time and space appeared again. This time, Zhu Xiongying not only sent life-saving medicine, but also returned to the Ming Dynasty in person to meet Zhu Yuanzhang and Queen Ma! Let's see how this grandson of the two worlds used modern knowledge to reduce dimensionality and push the Ming Dynasty to unprecedented heights!