Years after the fun times of her youth, Twilight Sparkle becomes the Royal Teacher of magic in Canterlot. Among the influx of students she teachers in the city's library is Marina, a wide-eyed, naive filly who is infinitely curious. Soon enough, Twilight finds herself relating a personal story to Marina, who is having problems of her own.

All Marina wants is to forget the problem and let it slip away, but Twilight tries to prevent that from happening. She counsels Marina on the nature of the problem...and it's one she had plenty of experience with.