I Came from the Future in the Fifteenth Year of Hongwu

Thinking about our glorious Ming Dynasty, the founding of the country has never been so righteous, and its technology, military, and culture are far ahead of the world. Unfortunately, our descendants have failed to live up to their expectations, which has caused China to lag behind other foreign countries for hundreds of years in modern times. If we fall behind, we will be beaten! This is a wise saying that will last forever. Let's see if he can change the fate of China in later generations, rebuild a political system for the Ming Dynasty that will last forever, free the Ming Dynasty from the strange cycle of the rise and fall of dynasties, and let the people of the Ming Dynasty never suffer from wars. Wherever the sun and moon go, they are all my Chinese lands! A 21st century history college student was struck by lightning outside the window while reading "History of the Ming Dynasty". When he woke up, he found that he had traveled to the Ming Dynasty... And fell from the sky in front of everyone, and landed in the newly built imperial prison of Jinyiwei. "What? It's the fifteenth year of Hongwu. Zhu Yuanzhang, the founder of the Ming Dynasty, has been in the country for fifteen years." This year, Zhu Yuanzhang sadly lost his eldest grandson Zhu Xiongying and his first wife, Queen Ma. With the death of his eldest grandson and first wife, Lao Zhu's temper became more and more eccentric, and his suspicion became more and more serious, which indirectly sounded the death knell for all civil and military officials. If this time traveler saved the two most important people in Lao Zhu's life this year, would it change the history of the Ming Dynasty for more than two hundred years?