Aiz Wallenstein, the Sword Princess, is known as oneof the most powerful warriors from one of the most powerful groups in the cityof Orario: Loki Familia. With them, she ventures into the deepest parts of thelabyrinthine Dungeon beneath the city, stalking the monstrous denizens that lurkthere and vanquishing them with the blazing light of her sword. But when shemeets a certain white-haired boy, the encounter will change both of themforever...