Qi Zhao, a descendant of the Dadao family, was once a personal guard of Emperor Xuantong. In the early years of the Republic of China, Qi Zhao returned to his hometown to take revenge for his father’s murder, revitalized his escort agency, and opened a martial arts school, defending and promoting Chinese martial arts during the chaotic warlord era. He successively defeated challenges from both Eastern samurai and Western boxers, earning him the title of 'King of the Jiangnan Escort'. However, he never expected that fate had other plans; among his two most trusted disciples, one was a member of the Japanese Black Dragon Society who tried everything to lead him to become a traitor, while the other was the savior with a grudge over a lost wife. What surprised Qi Zhao even more was that the woman he loved was actually the beloved daughter of his father’s murderer. In the treacherous world of martial arts, his fate was tumultuous and fraught with danger. Qi Zhao adhered to the ancestral teachings of 'benevolence, righteousness, propriety, wisdom, and trust', using his exceptional martial arts skills to resolve crises time and again while standing firm in his principles. Eventually, with the active guidance of the underground party, Qi Zhao secretly joined the Communist Party and formed a guerrilla force to resist Japan. Just as the truth he had sought for twenty years finally came to light, the Marco Polo Bridge Incident erupted, and the Japanese invaders entered China, while his father’s murderer served as an officer in the Nationalist Army, heading to the front lines against Japan. For the sake of national grievances, Qi Zhao gave up personal vendettas, joined the Communist guerrilla unit, and fought alongside his father’s murderer against the Japanese, battling bloodily.