[quote=BrobyDDark]
Keeping all the magic and stuff a secret? Or just making sure no innocents are harmed
[/quote]

Well, aside from providing some backup for battles, she'd be the one keeping the normal humans out of harm's way. Usually with magical girl stuff, the magic powers have a built-in secrecy thing. Like how no one knows Sailor Moon is Usagi, despite them looking the exact same.