Judgment Day has come and gone, leaving the Earth in ruins, overrun by savage beasts. Humanity's last hope rests with Joseph Abrams, the chosen bearer of the divine power known as Dovanity. However, Dovanity comes with a catch—it requires absolute purity of heart.
Amidst this chaos, a malevolent force emerges: Fiendity, which draws upon the darker aspects of human nature, making it a tempting alternative. The Iche clan becomes the guardians of Fiendity, determined to counter Dovanity's influence. A fateful battle ensues, and Joseph seals away the Iche clan.
Now, Udo, the sole survivor of the Iche clan, longs for a peaceful life with his new foster family. Yet, his fiendish heritage makes him a target, leading to his foster brother's capture. Determined to rescue him, Udo embarks on a perilous journey, navigating a world torn between divine purity and devilish allure.
In this devastated world, Udo must confront not only external threats but also the internal struggle between his inherited darkness and the light he seeks to embrace. His quest will test his resolve and challenge the boundaries of what it means to be both human and fiend.
