In a Japan where the Taisho Era didn't end after 15 years but went on for another 10 additional years the eldest daughter of the financially declining Kuze family, Tsugumi, resolves herself to a marriage she doesn't desire for the sake of her family. However, Hitaki, her younger brother, vehemently opposes the marriage and after a fight with Tsugumi, shuts himself away in his room and attempts to kill himself. Tsugumi blames herself for her brother's suicide, but two mysterious men appear identifying themselves as part of the Imperial Library Intelligence Asset Management Bureau and reveal that her brother's suicide might not be as clear-cut as it seems.
These words were written 
in a book I once read:
:ذُكرت هذه الكلمات في كتابٍ قرأته ذات مرّة
Diese Worte stammen aus einem Buch,
das ich einst las.
Estas palabras las leí
hace tiempo en un libro.
Estas palabras las leí
hace tiempo en un libro.
Cette citation vient d’un livre
que j’ai lu…
Così recitavano le parole di un libro
che lessi un giorno.
Essas palavras estavam escritas
em um livro que eu li:
В книге, что я как-то читала,
было написано: