Carrying the "human horse training" system, Jiang Han returned to Hong Kong Island in the 1980s, became a police undercover, and was ordered to run a martial arts practice. With his superior force and system underlings, he accepted Chen Haonan's commission and made a name for himself. He determined not to join the society and only do business, but he had to get involved in the turf war in Causeway Bay. When the eyes of the black and white parties focused on this, his "business" grew bigger and bigger.
