Liu Xuan, a modern military expert, traveled through the late Eastern Han Dynasty, awakened the orthodox bloodline of the Han Dynasty, brought the memory of "The Romance of the Three Kingdoms" and modern scientific and technological knowledge, and stirred up the troubled times as a "lone wolf". He improved gunpowder mines to defeat the Yellow Turban Army, used cavalry tactics to defeat Lu Bu's cavalry, and used papermaking and music culture to restore the dignity of the Han Dynasty. Facing Cao Cao's threat to the emperor to order the princes, Sun Quan's separatist rule of Jiangdong, and Liu Bei's struggle for legitimacy in the name of benevolence, Liu Xuan used modern military theories such as "blitzkrieg" and "intelligence warfare" to defeat them one by one, and even composed the music of troubled times with the talented Cai Wenji. He developed black technologies such as three-stage repeating crossbows and sled cavalry, and used "New Voices of Hujia" to disintegrate the morale of the enemy troops, ultimately ending the division of the Three Kingdoms and creating the Great Han Dynasty. The story combines intrigue, war and cultural innovation, showing a magnificent epic of a lone hero rewriting history with his wisdom.