A witch at the Academy of Magic. Purple ruby

When I made an agreement with the director of the witch academy, I temporarily became a student of his institution. But I didn’t have to be happy for long – in the first few days, I not only made new friends, but enemies as well. And now I’m running errands for brazen seniors, thinking up an insidious plan of revenge for them… I wish I could fall off a broom twice! Who’s kissing again? That’s not how a freshman witch negotiates!