Sunset Shimmer's past was not a very nice one and it was all because of Wave Beam Rose her and his horrible friends hurt Moonlight Shimmer her sister, one she heard that her sister was gone she packed here bags and left Equestria.

somewhere in the story there will be a school dance so the couples will be
[spoiler]Soarindash,Fluttercord,cheesepie,flashlight,rarity and fancy pants (I don't know what that one is)Applelane (AJ and Thunderlane I don't know why I put them together but if anypony wants something different the just post it in the comments and I might change it) BUT I am not changing SoarinDash,Fluttercord,CheesePie or FlashLight[/spoiler] and rated teen for language