Two cousins go to a convention dressed as Jacob and Evie Frye, The Twin Assassin's, and then transported to a completely different Equestria. One that is corrupted with gangs and violence, while Princess Celestia does nothing and exiles Luna.

[Displaced] After going to an anime convention with my friends, dressed as Captain Hitsugaya from Bleach, I was somehow transported to Equestria at the time before twilight and spike arrived at ponyville