Diamond Tiara has a secret. She likes Anime. Loves it, even. But nopony can find out. Not her parents, or her friend, or her classmates... Nopony! They'd never understand! They'd laugh at her, call her names, tell her *gasp* They would say she's uncool!
Well, it can't be that hard to keep such a secret from everypony in Ponyville, can it?