A doctor of modern military materials science returned to the Three Kingdoms period with modern knowledge and academics, and became a pawn in Liu Bei's army. He gradually set off the agricultural revolution, military strengthening, institutional changes, and technological upgrading of the Three Kingdoms, and used rifles, heavy artillery, hot-air balloons, and steam engines to subvert the unification of the Three Kingdoms! Note: This article contains absolutely no brainless plots such as harem, perverted system, and birth of 99 sons in one child. This article combines modern mathematical, physical and chemical knowledge, the social environment at that time, character relationships, and historical evolution to create a highly rigorous and logical Three Kingdoms travel story!
