In a realm where magic and legend intertwine, a young warrior embarks on a perilous quest to retrieve a blade cursed with the debt of a fallen demon, facing betrayal and the ultimate test of her heart and courage....

In a world where the line between the living and the dead blurs, a young girl's haunting lullaby awakens a demon from its slumber, setting off a chain of events that will determine the fate of the realm....

As the labyrinth deepens, a forgotten legend stirs, and the truth behind the Echoing Hall's secrets unfolds, revealing the demon's lullaby's true power....