A huge disaster happened when Natsu accidentally cast a spell that cause a wormhole to another world, which cause our lovable group warped into their world. How will they get back? Well, it'll take a while 'cus these guys are going to have an adventure! Bit of NatsuxLucy, SansxToriel, GrayxJuvia, PapyrusxMettaton, LevyxGajeel, UndynexAlphys. And Frisk is a boy in my story.
Crossover - Fairy Tail & Undertale - Rated: T - English - Adventure/Humor - Chapters: 7 - Words: 25,379 - Reviews: 77 - Favs: 100 - Follows: 117 - Updated: 12/19/2018 - Published: 12/7/2015 - Lucy H., Natsu D., Frisk, Sans