Not for free. She gets their blood and theoretically their obedience.
New girl might end up disappointed at the scale of the evil organization she finds herself a part of, since the majority of their evil activities involve sneaking around getting their blood drank/ambushing girls for more of same. I wonder if she'll go for comically small acts of evil "mistress, lets all go jaywalking!" or more jarringly serious ones. "Ooooh, can I shoot that person, pleeeeeaaase?"