Qin Hao, the former "Dragon King" of the underground world in Southeast Asia and China's top special warfare instructor, retired to the city after getting tired of the killings. He took over the "Jishitang" clinic left by his grandfather and determined to help the world by hanging the pot. However, the peaceful life was soon broken. Wutong Old Street, where the clinic is located, faced the threat of demolition by powerful groups, and the rights of the neighbors were trampled on. When his childhood sweetheart and neighbor sister Su Wanqing was seriously injured for refusing to move, Qin Hao broke out completely. He relied on his superb medical skills to revive the dead and healed the wounded, and punished the villains with his unparalleled fighting skills. In the process of protecting the peace of the old street, he gradually exposed the shady story of the collusion between real estate developers and the criminal police. As his reputation gradually increased, his former enemies also followed him. Qin Hao had to stand up again in the city, saving people with medicine, punishing evil with force, and writing a new legend.
