What are the regrets of the Hongwu period of the Ming Dynasty? Was it the premature death of King Zhu Xiongying of Yu, or was it the premature death of Queen Ma that left Lao Zhu without the scabbard of his sword? Was it that Prince Yiwen Zhu Biao passed away before he ascended the throne, or was it Lao Zhu who had no choice but to choose Emperor Jianwen, or was it La Yu's arrogant and domineering Lao Zhu because of politics? The reason for the general gap caused by the killing of many Huaixi military generals was the killing of too many irrelevant officials in the Kongyin case. Zhu Yuqi, a doctor of history, traveled through the Ming Dynasty to Prince Zhu Biao to see how the history book in my left hand and the system in my right hand changed the Ming Dynasty.