Xiao Yan time-traveled to become the third prince of Great Qian. The emperor emptied the national treasury and ran away. Eighteen princes will destroy the country in three days, and all court officials are waiting to watch the good-for-nothing bring about the destruction of the country. He turned the tables to make explosives, train a new army, and recruit fierce generals. He established the Great Qian Empire Academy, and relying on modern scientific and technological knowledge, he built an invincible army, expanded territory, and pacified the four seas. No one will ever get this throne back!