Seven years before a certain boy will arrive in the Labyrinth City, an era of chaos and strife reigns supreme. Ryu Leon spends her days serving the goddess Astrea while searching for a brand of justice that she can believe in. She is not alone, for the rest of Astrea Familia are a rare source of light in these dark times.

In the shadows, however, something evil is stirring. A threat that will shake Orario to its very foundations…!