The Carefree County Magistrate

After a long day’s work, a mechanical engineer went to sleep and woke up in the early days of the second year of Longxing in the Southern Song. It was a troubled age: the people lived in misery, corrupt officials ruled the capital, and the retired emperor held all the power. The famous general Yue Fei was long dead, and the Jin army’s iron hooves trampled deep into the south. The protagonist woke to find himself a muddleheaded county magistrate. To change his own fate and determine the rise and fall of the Southern Song, he raised an army, built barracks, forged cannons, manufactured guns, and established an arms factory...

Would the course of history change with his arrival, or would it simply repeat itself?