Lisa

Lisa was just an ordinary college girl trying to keep up with her homework when a mirror appeared before her and sucked her through-- out she came immediately, donned with powerful clothes and an enchanted dagger!
What it all means is beyond her, and she is still hesitant to use her powers more than often. It's almost as if overnight she became aware of how many baddies roam about the town causing problems, too...! Her magical energy that thrums within her compels her to solve this problem with what she was gifted, even though she'd prefer to just enjoy her magical outfits and hide in her dorm instead.

Though there is so much of her that has changed due to this awesome power, she's still the same as ever deep down. Normally she isn't brave and depends on others to assist her in fighting evil...
She also can be a little too kind, attempting to talk her foes out of their villainous ways, which of course never works.
Lisa has many questions as to why this happened to her, and less about how, which makes one wonder about her priorities.

And, of course, her studies have become even more of a struggle now that she's moonlighting being a crime fighter-- don't tell her parents what's going on, they'd throw a fit!