Traveling Through the Tang Dynasty: the System Wants Me to Win the Empress?

A modern migrant worker was bound to the system and traveled through time to become an eighth-grade official. He originally wanted to pursue his career in a low-key manner, but was targeted by the empress. Cement, gunpowder, curved shaft plow... He took out eighteen modern artifacts, intending to help the empress govern the country, but the empress looked at him more and more strangely—— "Li Xian, tell me, is the person in your heart really me?"