Takes place in Dashverse, before the events of "Wedding Bells Bug Hunt."

The recently redeemed Princess Luna is overseeing the Grand Equestria Summit, and Celestia wishes to ensure Luna makes a good impression on the delegates. At her request, Rainbow Dash and Rarity travel to Canterlot to offer their assistance.

However, Rarity and Rainbow Dash are coming to realize that despite their friendship, the two of them have spent very little time together apart from the group. Rainbow Dash, scarred by her own experiences with Canterlot High Society, is at loggerheads with Rarity's desire to advance socially, putting Luna's debut in jeopardy. Amid this, Rainbow's return to Canterlot forces her to ask herself just what her role as Princess Celestia's student really means.