This is a sequel to "Romance in the Air." The story is focused on the three night princesses called Moonlight Sonata, Nightlight Sparkle, and Midnight Darkness. Moonlight and Nightlight are the heroines, and they have casted a shadow on Midnight without knowing it. Midnight is cursed by Nightmare Moon at birth- and her dark powers seem to get worse every year. One day, when she turns to the darkness, Nightlight and Moonlight decide to redeem her using the Elements of Harmony- but, will they save her before it's too late?