Yang Yang was just a poor boy who didn't even have a high school diploma. He made a living by practicing as a substitute. Until one day, he burped in bed and woke up to find that he had arrived in the Tang Dynasty. Yang Yang was like a good guy. People like him came here to wait for death. He didn't understand any knowledge and theory. However, with his knowledge and insights that far exceeded those of the ancients, and the closeness of the system, Yang Yang opened a new era in the Tang Dynasty.
