Shirokishi Monogatari Episode.0: Dogma Senki

Prequel of the RPG game for PlayStation3 developed by Level-5, Shirokishi Monogatari: Inishie no Kodou.

The story takes place 10,000 years before the actual game's story, in an era embroiled by war and chaos. The manga tells the story of another White Knight who predates the White Knight hero character of the game.

(Source: ANN)