Heaven has fallen.
The legions of Chaos have overrun the world.
Uërth is in ruins.
With the Heavenly Host's fall, Angel Swords rained from the heavens, littering the world in what was.
Only the most honorable and purest of heart are able to take up the Angel Swords and wield them against the throngs of Chaos. These mighty Empyrean Knights are all that stands between Uërth and annihilation.

Maeraeth is neither a hero nor a great warrior. Nor does he wish to become an Empyrean Knight.
He just wants to be left alone with his studies.
And not be killed by demons.
But, with the destruction of the Chaos Gate, Uërth may have a chance at redemption.
If the hordes of Chaos can be contained and if no more portals to the Abyss are created.

Maeraeth's teacher, Master Nomba, has other plans for him. Plans that involve both containing demons and preventing their arrival.
So much for his studies.
And not being killed by demons.