Hayato's friend from his college days and newspaper journalist, Yoshikiri Takuma, ends up trying to kill himself after reading a cursed tome disguised in the form of a mysterious letter planted in his bag from an unknown sender. He seems to have been targeted after getting too close to linking Karasu to the fake cursed tomes. With the help of Yoshikiri's information Fukurou learns of his suspicions regarding Karasu, but before they are able to make a move Tsugumi is taken.
the Imperial Library Intelligence Asset 
Management Bureau, also known as Fukurou.
مكتب استخبارات إدارة أصول المكتبة
.الإمبراطورية، والمعروفة أيضًا بفوكورو
der kaiserliche Bibliotheksgeheimdienst,
auch bekannt als Fukurou.
Agencia de Inteligencia 
de la Biblioteca Imperial,
La Agencia de Inteligencia
de la Biblioteca Imperial,
Le bureau de gestion de la bibliothèque
impériale, alias les Hiboux.
L'Ufficio di gestione delle informazioni 
della Biblioteca Imperiale,
O Setor de Gestão de Ativos de Inteligência
da Biblioteca Imperial, ou Fukuro.
бюро разведки императорской
библиотеки, известное также как Фукуро.