John Lawrence 
Arms of The Dragon, Volume 1 [PDF ebook] 

Not everyone chooses the streets. Sometimes, when everything is taken away, its all thats left. The slums of Shindjin have long since been the champion of poverty. Violence and extortion are commonplace, where ones fate can literally be determined by a roll of the dice. A place where the fallout of these actions fall onto the shoulders of children. Shou and Jun are two such children, torn from the comfort of the lives they knew and thrust into an environment where organized crime is law. With nowhere to turn, theyre forced to become the very thing that ruined their lives.