#6 by Mystic Cake - Jul 26 2013
Uhh did you read my second paragraph? I didn't suggest they rob banks with magic either...
Also, Cloak is a difficult spell that takes a lot of magic to keep up- not only does it require really high Blue magic skill, but it takes a lot of mp to use for any period of time (I recall Minnie mentioning that during Ellen's route when she wanted to talk to you and Ellen in secret so she had to use Cloak), keeping it up for long enough to walk to the mall from a significant enough distance that the wards won't affect you, SOMEHOW get into a closed and locked mall at night time without magic, and go around stealing stuff and making your escape, all while maintaining Cloak seems a mighty tall order for a Freshman. Good luck with that.
Of course, all of that is assuming that your character's meager Freshmen-level spells are SOMEHOW strong enough or whatever to NOT be detected by Potsdam, who TEACHES all of those spells to your character and has been doing magic quite a bit longer than them.
It's just... not Magical Diary. Including something like that would alienate people who liked the first one because it was more of a school-based mostly-otome mostly-VN, not because it was Thief or Payday. This is an idea for a different, probably much darker game.
Also, it's been a while since I've done Ellen's route, so I might be fuzzy on the details there, fair enough, I'm not sure.
Though considering our respective opinions are largely moot since Hanako's the one in charge, I'll just end with a suggestion: write a fanfiction with that idea; that way people who don't want this in the game don't need it and your idea comes to life.