In Republic-era Jiangcheng, peerless martial god Lu Fan makes a living pulling a rickshaw, but his younger sister Lu Xiaoru suddenly falls gravely ill. Forced to reveal his martial arts, he fights in ring matches to earn money for her treatment. However, the trees desire stillness but the wind will not stop; the men of the Black Tiger Gang break the rules and constantly trouble Lu Fan, so he takes action, bringing the Black Tiger Gang to justice. Next, Li Heilong, the president of the Black Dragon Chamber of Commerce, has his son kidnap Lu Fan's sister. Lu Fan has no choice but to go to them in person to demand an explanation, ultimately cooperating with the security guards to bring the Li family to justice.