Emperor Ian transmigrates into the Third Prince of the Great Qian Dynasty. His father, the emperor, has emptied the national treasury and fled, and eighteen regional warlords will destroy the kingdom in three days, while the entire court of civil and military officials waits to watch the useless prince preside over the kingdom's fall. He immediately manufactures explosives, trains a new army, recruits fierce generals, establishes the Great Qian Imperial Academy of Sciences, and uses his modern scientific and technological knowledge to build an invincible army, expand the territory, pacify the four seas — no one will ever take this throne away from him!!