Calum begins having strange visions after falling asleep during class. It grows to an all-time high the next day, once his parents seemingly dissolve and fade out of existence in front of his very eyes. A storm suddenly rages outside, destroying everything in its path in mere moments, and claims him as well.
Unknowingly to him, this phenomenon transports him to the world of Rudatria, more specifically in a city named Tarnac. No surrounding is the same, the streets are filthy, and the inhabitants seem gaunt and resentful. Somehow, a few of these citizens appear almost identical to some people from Calum's world, one of whom is a former farmhand named Favian, who bears some resemblance to Calum's friend Thomas. He then learns of the existence of a group of powerful individuals who once roamed these lands, called Nejembras. Superhuman warriors, responsible for keeping the peace, empowered each by one of three powerful elements, Void, Solar and Arc.
Being sent to this strange, new place, however, has put a target on Calum's back. Namely, in the crosshairs of a powerful dictator named Haveron, who has lived for thousands of years. He is a fearsome warrior who, once was thought to be the only Nejembra capable of wielding the three elements. But because of a grave wrong done to him by his fellow comrades, Haveron had taken it upon himself to rid the world of the Nejembras, calling them corrupt.
Calum begins changing, morphing into a Nejembra himself, the longer he remains in Rudatria. He grows more and more violent, his eyes begin glowing bright blue, a sign of an element molding his body into a fearsome weapon. Suddenly thrust into a war he wants no part of, to fight for the remaining free people of Rudaria, Calum struggles to survive even with his newfound strength. It seems as though to return home, he must fight his way through an empire and overthrow a tyrant king, before losing himself completely.
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.