Before time travel: Li Mo, a modern social worker, a 996 programmer and a history buff, died suddenly due to working overtime for 72 consecutive hours.
After time travel: Emperor Yan Zhao, the ninth emperor of the Yan Kingdom, was a famous coward + tyrant in history. Three years after he ascended the throne, the court was in chaos, the borders were in danger, the people were in dire straits, and there were only three months left before the country was destroyed.
Goldfinger: "Civilization Evolution System" - As long as Li Mo behaves in line with the progress of civilization, he can exchange for modern technology, knowledge and a small amount of materials. But the limitation: you must personally promote the change, and cannot be directly exchanged for finished troops.