The First Postman in the Late Ming Dynasty

Lin He, a veterinarian who graduated from an agricultural school, traveled back in time to the first year of Chongzhen! His soul fell into Mizhi Yinchuan Post, and he became the humblest post boy. The imperial court collapsed, refugees were everywhere, the late Jin Dynasty was watching, the Ming Dynasty was on the verge of collapse, and troubled times were coming! With modern agriculture + top veterinary technology, Reclaim wasteland to grow food, manage livestock and save people, appease the refugees, and develop farming! I wanted to survive peacefully, but unexpectedly enlightened my brothers in Tongyi. The other party unexpectedly left his hometown, causing a stir in the world! Since then, the two heroes in troubled times have been facing each other in different ways! One man took root in the frontier fortress, stationed troops and stabilized the people, and vowed to work hard to prevent the collapse of tomorrow; One man went to a foreign land, traveled across the world, and caused huge waves of chaos in the world! Fight against the Tatars in the north, compete in the Central Plains, In the fateful showdown between the two heroes, who can rewrite the ending of the Ming Dynasty and determine the fate of the world?