This is an original idea that popped in my head. So basically, you're either a Prince, or Princess, or part of some sort of royalty. The country, or family, you character was born into can be completely made up (if you like), or exist. Your character must attend this academy, to basically learn how to take up their parents' position once it's their turn. Your character can be royalty, the minister's child, or such. You can also be a commoner, but note, you don't attend the academy. On breaks or weekends, your character can also leave the academy to visit home and such.
Oh well, whatever you decide, have fun!