Throughout her life, Moon Dancer has been the pony to be by herself. Despite having resolved her friendship issue with Twilight Sparkle, the mare still acts the way she once did. That is... until Party Favor came into her life.
After the Siren's defeat, Aria has been bored with her existence while Adagio and Sonata have been able to move on with their lives. On one of her daily routines, Aria happens to run into a former enemy, who also seems to have forgotten who Aria was.
Flash Sentry has been having the same dream every night; he dreams of Twilight Sparkle. And every day, he is reminded that the Twilight in his world is not the one he knows. But despite his dreams, he is not the only one having trouble with coping.