He fought Balalaika in 1993 when Hotel Moscow came to the city in a battle so intense that it nearly destroyed the city. It is not known if Roanapur was Chang's original post or how long he has been in the city, but Chang's residency in Roanapur predates Hotel Moscow's arrival at the very least. In the OVA a Triad member refers to Chang as a 'dirty cop who killed his partners.' Chang himself tells Rock that he was a 'fearless guard dog who burned with justice.' Given how Chang describes himself, that he claims to hate hypocrisy more than anything, and that he says he has 'looked into the hearts of human beings and seen things you can't even imagine,' there is speculation that Chang left the Hong Kong police force because of corruption in the ranks. Before joining the Triad, Chang was a cop in Hong Kong.