The night Naruto stole the Scroll of Seals, he quickly learned the Shadow Clone jutsu and moved on to the next one listed. At the same time, in another universe, a filly Twilight Sparkle is trying a spell that would summon a friend. Jutsu and spell collide, and Naruto suddenly finds himself in Equestria. While he waits for Celestia to find a way to get him home, he's gotta make the best of this new world he's found himself in.

As years pass, Naruto becomes more and more accustomed to his life in Equestria. Until Celestia turns their peaceful lives on their heads by sending them to Ponyville. Sure, he agrees that Twilight needs to make more friends, but did she have to send them to a town full of crazy ponies?!

And why does Twilight keep talking about this "Mare in the Moon"?