Sunset Shimmer, the Princess of Valor, is the happiest Sunset in all of the multiverse; A fact that will be painfully obvious to her, when she's cursed to travel the multiverse meeting other failed versions of herself.
Sunset Shimmer doesn't remember what happened at the last night's party. And worse yet, she can't remember just which one of the Twilight's she slept with
To trick her parents into thinking she's straight, Twilight hires Microchips as a fake boyfriend. Without telling her real girlfriend. There's no way this can go wrong.
After a long day at work Sunset Shimmer can't wait to come home to her beautiful fiance Twilight. However when she gets home, she finds Twilight crying!
Morning Glisten isn't really a good filly. She fights with other foals, and she doesn't really trust adults. So when three Princesses take an interest in adopting her, she'll need to become someone else to win their love.
After she marries Twilight and Fluttershy, nopony will stop talking about Sunset Shimmer. What was once her fondest wish has become a constant strain, so the three wives decide to get away from it all on a road trip through the human world.