Minor Nuance is the background pony of a background pony's background pony.
Nopony ever sees him. Nopony ever hears him. Nopony ever even acknowledges his existence... except Pinkie Pie. So, when an interview for a new job doesn't happen, it's no big surprise. Yet, with everypony in town going on with their lives, Nuance can't help but feel a little left out and lonely.
Good thing Pinkie Pie is there to help set things right! Especially when Rarity notices the pony with such a poor sense of self worth.
Oh, and there's a pie.