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.
Should I be walking alongside members of 
the opposite sex when they're not family?
ألا بأس أن أسير إلى جانب أعضاءٍ
من الجنس الآخر وهم ليسوا من عائلتي؟
Darf ich denn wirklich neben Männern hergehen,
die nicht zur Familie gehören?
¿Está bien que camine con hombres
que no son de mi familia?
¿Está bien que camine con hombres
que no son de mi familia?
Ai-je le droit de marcher aux côtés
d’hommes qui ne sont pas de ma famille ?
Sul serio non c'è niente di male
Posso andar junto de pessoas do
sexo oposto que não sejam da família?
Можно ли мне идти вместе с сотрудниками
противоположного пола, которые не из семьи?