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.
We believe that's what 
happened to your brother.
.نعتقد أنّ هذا ما حدث لأخيك
Wir vermuten, dass Ihr Bruder
Opfer eines solchen Buches wurde.
Creemos que es
lo que le pasó a tu hermano.
Creemos que es
lo que le pasó a tu hermano.
Nous pensons que votre frère
a été victime de l’un d’eux.
Noi crediamo che suo fratello
sia stato vittima di uno di questi.
Acreditamos que foi isso que
aconteceu com o seu irmão.
Мы считаем, что вашего брата
настигло то же самое.