あらすじ
――Making a contract with a powerful spirit to receive its blessing is known as "Spirit Contracting." It was an essential power for any full-fledged adventurer, but Kyle accidentally burned a spirit to death with his own "mysterious flames" and was exiled by his party. While traveling toward his hometown in despair, Kyle encounters a girl being attacked by monsters. Although he tried to save her, Kyle was utterly powerless, having lost his ability to make "Spirit Contracts"... However, just as Kyle falls into a desperate, life-threatening situation, the girl suddenly reveals that she is a legendary "Dragon Spirit"――!? When the calamitous "Spirit Killer" meets the "Dragon Spirit," the battle that decides the fate of the world begins now――!