The soul of a man from science and engineering passed through the transparent prince of the Song Dynasty and activated the sign-in system. I wanted to lie down and be a salted fish, but I was embezzled by eunuchs, bullied by profiteers, and threatened by golden soldiers. In desperation, he burned glass, planted high-yielding grains, made firearms, and trained new troops. When everyone thought he was going to usurp the throne, he handed over his power and took the old guys from the Academy of Sciences to retreat to Jiangnan. The emperor was confused: This script is wrong!