My Ming Prince of a Brother Keeps Getting Himself Killed, So I Go on a Rampage as Regent

[System + Ming Dynasty + invincible + play the pig to eat the tiger + conquest + political maneuvering + transmigrate + wish fulfillment] Transmigrating into the Ming Dynasty as the sickly Prince Zhu Qiyu, he finds himself at the very start of the Tumu Crisis, with his useless imperial brother leading an army of 200,000 on a thousand-mile journey to get themselves killed! His remonstrations are rejected, and he’s confined to his manor. In everyone’s eyes, he’s a useless man the times are about to leave behind. Nobody knows he has activated the [Fortune-Reversing Investment System]! The more unprofitable the investment, the more outrageous the rewards it gives back! “Ding! Invested in a general who died for his country. Return reward: [Crouching Tiger Cannon Blueprints] + [1,000 Divine Engine Corps Death Soldiers]!” “Ding! Invested in a hostile tribe. Return reward: [Fine Horse Breeding Method] + [Grassland Informant Network Map]!” While the “God of War” imperial brother is getting beaten senseless on the grasslands and questioning his life, Zhu Qiyu has already quietly built an invincible army in the capital, one that will make the world tremble! Years later, Zhu Qizhen returns to the capital and sees an empire stretching for thousands of miles, with every nation coming to pay tribute. Then he looks at his sickly younger brother, whose cough is enough to silence the Grand Secretariat, and is completely dumbfounded. “Imperial brother, did you really lose your way to this empire?”