Fairy Spies [Complete]
Erza, Mira, Lucy, Levy, and Juvia are all spies at the Fairy Tail Agency, in fact their the best and brightest. When they get sent undercover at a high school they don't understand why their there. They soon realize they have to get close to a group of boys from the evil agency and hopefully turn them good, or turn them in.
Jellal, Laxus, Natsu, Gajeel, and Gray all work for an evil agency called Phantom, they are the best agents there. When some new girls join their high school they are instantly mesmerized by them. They later find out these girls are from Fairy Tail Agency, their rivals, and decide to play around with them for a while, and maybe convince them to turn to their side.