It's a fantasy-based otherworldly story. Arrived into the land of foreign, a world where darkness had ruled over the land for countless centuries. Cynthia who possessed both opposite powers of dark and light, chase after her sister to this realm as she intends to save a man who got caught in their sibling conflict. During her journey to free every human soul from the bind of the demon, she accidentally discovered the dark secret buried in the past. A secret that connected both worlds, a secret that has been left untouched for a countless centuries.