Gotham.

A place where survival is tough if you don't get everything right from the start.

Unfortunately, your path was pretty rough, and now you're a gun dealer in a pretty grimy gutter.

However, you have a regular customer, Deadshot. Attractive. Sarcastic. "I'm gonna knock your ass off." Type of guy.

You're stocking some new weapons when Deadshot walks in. "The usual," he says simply, pulling his mask off.