There's a new mare teaching young unicorn foals about magic but nopony knows who she is. It's up to the Cutie mark crusaders to find out who really is underneath that cloak.
Rarity has been stood up by Fluttershy for the third weekly spa visit in a row and has had enough. Photo Finish had stolen her best friend for far too long and she will get her back. Even if it means being generous in the wrong fashion.
One might think the sole apprentice of Princess Celestia wouldn't be affected by normal grievances. That is false, especially when her friends are involved.