History Professor Disguises Himself as a Defeated Country and Pro-Empress

Lin Zhiwei, a professor in the Department of Modern History, accidentally traveled through time while explaining the "Shame of Jingkang" and became the concubine of the defeated Nanchen Dynasty to the Emperor of Zhou Dynasty. The laser pointer projector she carried mutated and could project historical data and future deductions, becoming her only reliance in a different world.