If any of y'all think this is weird, consider that the Superhero genre consists of stories involving ninjas, space aliens, genetic mutants, organized mafias, crime-scene investigation, and fucking psychological horror/thrillers.
And that's just Batman.
But that aside, for some reason my first instinct wast that she reminded me of Noodle from Gorillaz, because of the whole "super-solider, incredibly dark past" thing, paired with the running away from home. I know this is a common trope, but at least she wasn't shipped in a Fed-Ex box to Kong Studios...