You and your sister get sent to a music school? Because of your gals 'singing talent' and that's where you meet the one and only red haired devil, Karma Akabane. You are a tsundere towards him but when you are in you apartment you tell you sister all about him. Your sisters name is Kiva, you are the older twin out of you two. Will you keep you emotions and feelings bottled up or will you 'demon' sister ruin you chances by telling him?