Jia Xu, the counselor of the Three Kingdoms, was reborn as Chen Wenhe, a down-and-out hawker when Nanjing was destroyed in 1937. Faced with a world that was even more miserable than that in the late Han Dynasty, he decided to save the country with the wisdom of a poisonous man. Relying on the belief of "using poisonous tactics in troubled times", he survived in the cracks of the Japanese invaders, the Kuomintang, the underground party and other forces, used extreme means to fight against foreign enemies, repeatedly used poisonous tactics to reverse the situation of the war, walked on the edge of morality but still had the blood of the Han family, and ultimately contributed irreplaceable strength to the victory of the Anti-Japanese War.