Devil Slayers in Rwby (Fairy Tail/Saint Seiya x Rwby)

A mysterious group of siblings from a neighboring country is sent to Vale in pursuit of Salem and her allies. But what's this about an enemy even more deadly than the queen of grim herself? Can our favorite ball of energy and her friends survive a fight with an ancient Evil with sinister plans for all of Remnant and its citizens? What kind of impact will a group of devil slayers trained by Saints of Athena have upon the story of Rwby? Ruby x OC, Yang x OC, Weiss x Oc