KRNJ

Kratos Sinclair is a Fire Devil Slayer of Fairy Tail while his younger brother Rai is a Lightning Dragon Slayer and an S-Class Mage. While out on an S-Class mission with Natsu, they encountered Jellal Fernandes, an old friend of theirs. Jellal revealed that he had found a strange crystal in a cave, but once all four touched it, they are transported to a new world. Remnant.