In the realm of Gondwana, where mighty kingdoms stand beneath the watchful eyes of the gods, Kayin is hailed as the prince of Eydo, the world's strongest empire. But everything changes when his mother assassinates his father, and Kayin is framed as a conspirator.

With no way to prove his innocence, the beloved prince becomes the most hated man in the empire, and is condemned to die on his eighteenth birthday. However, shortly before his execution, a chance encounter with a mysterious woman from the East gives him an unexpected chance at survival.

Now as an exile, hunted by the people he was born to rule, Kayin begins a journey through a world where mortals wield the powers of gods and divine forces shape the fate of kingdoms.

But survival is only the beginning, as Kayin sets his sight against the person who started all of this to begin with...

His older sister.