This is a challenge That I literally just thought of. Naruto and Sasuke go to a new world called fiore. They got sent there by kaguya as a final attempt to win the battle. When they get there they tell people jutsu. They pass their new "Magic" as lost magic. 100 years later they became legends and even started their families the uzumaki and uchiha back up. But now there new legacy's(Two oc) and sasuke and naruto come back to explain to them that their from different world and send them to fairy tail during they whole phantom lord battle with fairy tail.