Lunaria, a court mage of the kingdom of Sagittaries, is sent to investigate ancient ruins with her comrades. But the seemingly simple mission goes terribly wrong. The ruins are full of monsters, and a mysterious figure appears and robs Lunaria and her allies of their mana, the source of their magic.

Lunaria, a court mage of the kingdom of Sagittaries, is sent to investigate ancient ruins with her comrades. But the seemingly simple mission goes terribly wrong. The ruins are full of monsters, and a mysterious figure appears and robs Lunaria and her allies of their mana, the source of their magic.

Lunaria is told that her mana will not recover on its own. But there's hope. She may be able to use the ancient jewels of the five Great Mages to restore everyone's powers. As one of the few court mages left with any magic, she sets out on a lone journey to find the jewels.

Her quest will be perilous, but Lunaria isn't your ordinary mage.