Granzelia, a world inhabited by both mankind and beasts.

A world once ruled by the God of Ruin, Loug Zeus.
The hero Adel with the Goddess Lilaha worked together to seal the God of Ruin away.

Our adventure begins many hundred years later.
The world has United peacefully under the Aldanian Empire that was founded by the decendants of the hero.

However, reports of mysterious beasts disturbing the peace have gotten more frequent.
Kyle and Rei, a knight and a beast in the 12th division, go on a certain mission.
Without knowing it, they embark on a quest that may change the world.