Now happily retired from being the ruler of Equestria and in a loving engagement to Discord, Celestia accepts his invitation to join his kind's mysterious society. It turns out she'll have a lot to learn, but luckily she has him to guide her.

Flash Sentry has a good life. He's work as a Royal Guard serving under Princess Twilight Sparkle is going smoothly, his love life is great, and his life is steady. And now his marefriend wishes for him to start a herd.