After a tiny little mishap, Natsu, Lucy, Levy, Gajeel, Happy and Panther-Lily find themselves in the Harry Potter world. Finding no way to escape, they eventually settle down.
Nashi, Emma and Igneel, the Fairy Tail members' children 20 years later, join Hogwarts as new sixth years, the same year as Harry Potter and his friends. The adults plan on joining as teachers.
Or at least they try to.
Things get tricky when Gajeel finds a time-turner, and with the innocent intent of eating it, things go very, very wrong.
"LUCY! NATSU!" the blue haired wizard yelled at the top of her voice, trying to be heard over the 2 magnificent dragons fighting above. She ran, almost tripping over every obstacle on the way, stopping only when she reached the pink and blonde-haired pair. Gajeel towered above her, resting his hands on her shoulders.
"Lucy! Natsu! Gajeel and I have found a piece of paper on the floor! I think that we found a page from the book of Zeref or some other random book, that has a complicated spell that can destroy Acnocogia!"
Natsu, whose gaze was fixed upon the empty space where Zeref had disappeared a few moments ago, turned his head, his attention now on the still blabbering Levy, "Coincidently, we need 2 dragon slayers, a celestial and solid script mage to complete the ritual. Come on! Hold hands... that's it! Now repeat after me..."
Levy chanted a few strange words that didn't sound human, but however rather snake-like. The other 3 repeated after her, struggling with the inhuman words that the blue-haired wizard pronounced so perfectly.
As the last word of the spell was uttered, an oval shaped portal seeming thing opened, flashing electrical bolts everywhere, stinging the mages' skin. A large gust of wind was sucked into the light, taking Natsu, Lucy, Levy and Gajeel with it.