In the magical land of Sylva, the Zons were gifted with pure magic abilities that allowed them to control elements and live for hundreds of years in peace and harmony. But the dark wielders, envious of the Zons' powers, sought to gain even more power by making sacrifices to obtain devil powers. They eventually wiped out every Zon alive, leaving the kingdom of Sylva in ruins.
Years later, the dark wielders still seek to cause destruction and take over the world. However, a glimmer of hope arises in the form of a boy named Leo Vermilion, who lives in the city of Sylva with his parents. Leo is an artist who spends more time drawing than interacting with his family, but his life takes an unexpected turn when his grandmother arrives with a mysterious warning. As Leo and his family navigate the dangers of the dark wielders' plans, they discover that Leo may hold the key to saving their world from destruction.
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.