Twilight Sparkle is living as happy as can be! With her and Sunset Shimmer officially declared a couple, she felt nothing could bring her down!

That is, until she comes face to face with Sunset's earliest ex, finding how much more serious, cool and all around tougher they were compared to her. Now, feeling fearful for the future of their relationship, Twilight makes it her duty to do everything she can to toughen up and change everything she can about herself, all for the sake of keeping her relationship going strong!