Other name: サクリード, デーモン聖典, 恶魔圣典, Demon Sacred, Demon Seiten
Summary: A symptom which causes one to physically regress till the point of disappearance. A pharmaceutical company which claims to be researching a cure and the cause for this syndrome. What are their motives? And what does a dragon slayer and even a handful of demons have in relation to all this?