As a guy gets hit by a truck, a goddess drags his half dead body to her and tells him she'll grant any of his wishes.
So he asks for an almost unheard of magic.
Isekai shenangains ensue.
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.