Books containing the intense emotions of the author, sometimes with the power to force the death of their readers, these books are known as "cursed tomes". The role of the Imperial Library Intelligence Asset Management Bureau, nicknamed Fukurou, is finding and retrieving these books. As a result of the incident with her brother, Tsugumi has gained the ability to see the auras around cursed tomes and decides to join Fukurou to put her new powers to use. However, she finds Fukurou full of rather unique members such as Ozaki Hayato with a sharp-tongue and a strong sense of justice, Kougami Akira who has difficulty with people, and Hoshikawa Hisui with mismatched eye colors.
It's far too precious to be a mere 
decoration, so I always wear it.
.وهو قيّم كثيرًا لأن يكون مجرّد زينة، لذا أرتديه دائمًا
und als reine Deko ist sie viel zu wertvoll,
daher ich trage ich sie immer.
Es demasiado valiosa para ser
solo decorativa, por eso la llevo.
Es demasiado valiosa para ser
solo decorativa, por eso la llevo.
Plutôt que l’accrocher au mur…
Vale veramente troppo per tenerla 
solo come decorazione, quindi la indosso sempre.
é valiosa demais para ser só decoração,
então eu sempre uso.
Она слишком ценна для обычного
украшения, поэтому я всегда ношу её.