"In the kingdom of Ruswal, very few people leave their homes after nightfall, let alone have the strength and skill to take on the powerful, azure-blooded demons that plague the island. One of the best among these brave few is Arnice, a knight of great skill and power, who is assisted by her friend and priestess Lilysse in a quest to rid the land of these monsters. However, they soon find out that the solution to the island’s problems might not be as simple as defeating enemies in battle."