Facing starvation in an endless winter, the young filly Celestia attempts to raise the sun... and finds a wonder that her cynical mind had never conceived.
After Celestia humiliates her at a dinner, Luna storms off and ends up snooping around in her sister's room. There, she stumbles upon the journal Celestia kept immediately after the banishment of Nightmare Moon.
Luna reread the graffiti, but it came no closer to making sense. “Princest Is Wincest,” it said. It was confusing enough to be offensive; did nopony spell correctly anymore? Perhaps Tia would be able to explain it.
Ice Cream, so sweet, so delicious. Who would have thought a simple ice cream cone would have the power to nearly topple the financial basis of Equestria?
Luna thinks Celestia has gone soft. Celestia reacts about as well as expected. The two sisters meet on the pitched field of the Iron Pony Competition to settle the score.