A young girl named Ange is summoned to a Sacred Land and is chosen as the Legendary Etoile, whose mission is to save the newly-born Cosmos of the Holy Beast, which has recently fallen under a crisis. With the support of nine Guardians (who have the power of nine elements), she embarks on a journey to save the dying land of the Holy Beast and to discover her true self.

Ange is now trapped in the Seijuu Universe, and cannot leave until she awakens Seijuu's Queen. In order to do this, she must gather nine new guardians. It sounds like a fairly simple task, but how can she convince these men to tear away from their own lives and protect the life of another?