A young man from the modern era transmigrates into the body of the Jianwen Emperor. On the very day he ascends the throne, he learns that the Jingnan Campaign will begin in four years. The vassal princes command their own armies, the Prince of Yan watches like a tiger poised to pounce, and the court is on the brink of collapse. He sheds his weak and benevolent facade, secretly sets the Embroidered Uniform Guard in motion, drives a wedge between the imperial clans, appoints Geng Bingwen to command the troops, and places the Prince of Yan’s three sons under house arrest. He appears generous, but every move is carefully calculated. He uses the Favoring Decree to weaken the vassal princes, investigates the salt-trade permits to shore up the treasury, and trains a new army for war. Time is short, and one wrong move could cost him everything. In this life, he will rewrite the ending with cunning and turn the impossible into victory!