characters, jazz and plots

With gangs running the entire city you have to be in one or be rich enough to live in safety. If you're not either of those? It's survival of the fittest.
One gang leader is approached by a merchant to complete a task. To complete it one member, the strongest of her kind, has to acquire other members that are willing to do this.
It's a shame that the task isn't all it seems and the gang leader is too much of a cryptid to reveal all of the mission.