Sweetie Drops had a rough first day at school. Things get even worse when the other kids start picking on her, but salvation comes when a new filly enrolls in class and easily becomes the target of the teasing. So easily, in fact, that Sweetie Drops herself joins in.
At first, Sweetie Drops is relieved to finally be left alone, but her mother's warning about teasing others--and her threat of taking away dessert for an entire month--rings in her ears. When she goes to apologize, she doesn't realize the event is actually the start of something much more important.