Lightning Dust has become an alicorn (for some reason). She needs to figure out how function as an alicorn now.

Meet Indigo, the most outcastiest pony you've ever met.

Pinkie Pie runs away. Along the way she meets a yound mare named Mismatch. And they're in for a ride.

It has been exactly 5 months since Pinkie has killed Rainbow Dash, and she's fighting against herself to end her insanity.