(2nd person) You don´t know who or what you are, but Fate seemingly has plans for you, evil plans that pit you against the princesses of Equestria, a choice driven story of being a bad guy.
Celestia has made many enemies and in time they were all beaten, but in the present there are more princesses, who also didn´t leave everyone in their wake happy, and a few of those are out to get them.