Starlight Glimmer, after spending Hearth's Warming in Ponyville, goes to the Crystal Empire to spend the New Year with her old friend, Sunburst, for whom she has also secretly has feelings. Can she tell him how she feels?
The second changeling attack on Equestria has helped the Royal Crystaller Sunburst in getting a fresh perspective on several aspects of his life. One particular aspect comes into focus when Shining Armor and Cadance offer him a weekend off.
Starlight travels with Sunburst to an old abandoned unicorn settlement that predates the ruling era of the Two Sisters. They're searching for ancient lost spells but something "bad" happens to them.
(Prequel to "Birthday Built For Two".) On a trip to the Crystal Empire, Starlight finds Sunburst acting rather strange. Before she has a chance to ask him though, she gets roped into helping him foalsit Flurry Heart for a day.
Sunburst has messed up everything between him and Starlight. Now he has to amend the situation, but what is the correct form of doing it when she has an unstable personality and the powers of a goddess?
When Starlight Glimmer reads A Hearth's Warming Tail for herself the day after Hearth's Warming, she finds it to be a bit different then how she remembered. Specifically, what was Sunburst doing in the story?
After the crystalling, the banquets, and the private after-party, Starlight gets her chance to be alone with Sunburst. They realize that they share two things in common: their friendship and different perspectives of the day he got his cutie mark.
Starlight Glimmer has returned to the present to find herself a member of the Mane 7. She is now a bearer of an element of harmony, and has a husband—her soulmate, Sunburst. So, what happens the morning after?