Kyoko Nakashima is the descendant of the child of the God Kryptaris and a human, causing her to be half-god and half-human, in other words, she was a demi-god. When Kyoko was born into the world, Necrosis, the brother of Kryptaris cursed her with a mark that was to inflict harm on her when she turned 14, but Kyoko also had another secret, she had inherited the godly powers from Kryptaris.
Since Kyoko had a curse on her, she was not able to unleash her godly powers, and so, they were concealed in an ancient jade sword, but that single sword had not been found in a millennia, before the end of the world as the fates have predicted, Kyoko must find Necrosis and destroy him before he takes the throne to become the all-powerful ruler of the world.
Will Kyoko find and destroy Necrosis once and for all? Or will the world crumble away with her?
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.