Welcome to Academia Von Song, a school for those who can wield Mania. Pyromania, psychomania, technomania, necromania, and many, many others. Basically, you all are obsessed with something to the point you can wield it? No. These powers are the exact opposite of what you want. You like water? Fire powers. You play with fire? Water power. That's why you're here. To control that.
And if you don't...
Then Society doesn't really need you. So we'll simply.. eheh... eliminate you.
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.