Reborn as Zhu Yunwen, the eldest grandson of Hongwu, he knew that under his feet was the cliff of the empire overturning. Kindness and ideals cannot bring stability to the imperial power. Facing the busy kings, especially the future Emperor Yongle, he must abandon his illusions and use the most realistic tactics and iron-blooded skills to completely reshape the empire. Starting from the desperate comeback in the Battle of Jingnan, he will take a tough stance to integrate internal affairs, work hard to govern, and then start a magnificent era of territorial expansion. This time, Ming's ships and cavalry will sail to a distance that history has never reached.