Chongzhen Was About to Hang Himself, but I Chopped Down the Crooked Tree

If they won't submit, fight them. If they do, fight them even harder. With a weapon in hand, the world is mine. Save the Ming Dynasty! Before going to bed, Yuanzhong read a trashy novel about Zhu Yuanzhang establishing the Great Wilderness Hongwu Divine Dynasty after his death and becoming the Hongwu Divine Emperor. Then he woke up to find the sky falling. He had transmigrated to the nineteenth day of the third month of the seventeenth year of Chongzhen, the very day Li Zicheng stormed the Forbidden City. To save his own skin, Yuanzhong had no choice but to follow the wicked Hongwu Divine Emperor's instructions: stop Chongzhen from hanging himself, put down the peasant rebellions, and keep Dorgon from entering the Pass. Luckily, Hongwu Divine Emperor Zhu Yuanzhang had a shred of conscience and gave him a portable weapons arsenal stocked with every modern weapon imaginable. “Li Zicheng, you won't submit? Eat this pineapple grenade!” “What, Zhang Xianzhong, you still dare call yourself emperor? Ever seen a howitzer with a barrel as thick as a chimney?” “What? Wu Sangui still dares to be a traitor? Howitzer barrage, level the whole place!”