Bøker i A Kingdom of Quartz-serien i rekkefølge

"In a world where angels protect the people against demons, a young orphan with pitch-black wings may hold the key to the kingdom's fate. An exquisitely drawn, dark fantasy manga for fans of Puella Magi Madoka Magica, Made in Abyss, and Witch Hat Atelier."--

For centuries, the Quartz Kingdom has basked in the warm glow of the Goddess s light. That all changes one day when Demons attack the capital, laying low countless Celes. Yet even as the kingdom teeters on the brink of disaster, a black-winged orphan named Blue awakens to a terrible new power within her and vanquishes the Demons."--