When Two Worlds Collide (Attack on Titan and Fairy Tail Crossover)

Two different worlds with their own unique people living their lives with their own problems in their world. When Natsu and Gray accidentally create a magic portal while messing around, the Big Four and a few other guild members find themselves in the Attack on Titan universe. They learn how to survive in the nightmarish hellhole while also learning how to make friends, live, and maybe even love.