Xiao Chengjun, a top student in a modern military academy, accidentally traveled to the Daning Dynasty, just as his family was being framed and exterminated by the powerful Prime Minister Zhou Huaijin. He joined the army incognito and relied on modern military theory and tactical talents to rise from the bottom of the army. In the first battle, he used "encirclement and reinforcements" to defeat the bandits, used the "suspicious soldier strategy" to repel the enemy cavalry in the border town, and set up a "counter-insurgency bureau" in the court to expose the conspiracy of powerful officials. In the process, he fell in love with Su Wanyue, a master of medicine, from misunderstanding, and joined forces with his old brothers to turn the tide, and finally quelled the war in Kyushu, killed his enemies with his own hands, and became the "Invincible Military God".
