Ever since Pinkie Pie discovered her cutie mark, Pinkemena has been trapped inside of a mirror most of her life, only coming out when Pinkie gets depressed. But now, she's tired of living behind a mirror while her other half is all happiness, smiles, and parties. So she comes up with a plan to permanently get rid of Pinkie Pie while fooling the others once and for all. She only hopes that nopony finds out.