Three Kingdoms: Become the Emperor of the Han Dynasty at the Beginning

"The red cannon is being installed... Installed successfully!" "The city wall is being reinforced and constructed... The construction is successful!" "Infantry training in progress... Level 3 infantry training completed!" … What? Is this arranged for me? Liu Xian was originally an ordinary college student, but he accidentally traveled to the Three Kingdoms, opened the power system, and upgraded crazily, heading towards unifying the three kingdoms, dominating the world, starting the stage of cultivating immortals, and the country's ascension.