Betrayal is My Life ( a fairy tail fanfic )

Melody is an ordinary high school student . But one day her friend betray her. when she was given the cold shoulder because the" incident " and being slap by her loved ones, a Devil appear and make her a deal, she gladly accept it. then . . . . . . . . . . . . . . . . . . . . . . JUST READ TO FIND OUT OKAY !!!!!!!!!!!! ^_^