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.
Some of them had been 
engaged since they were born.
.وبعضهنّ مخطوبات منذ ولادتهن
und manche von ihnen
waren schon von Geburt an verlobt.
Algunas están prometidas
desde que nacieron.
Algunas están prometidas
desde que nacieron.
L’une d’elles est même fiancée
depuis sa naissance.
E alcune erano promesse in sposa
fin dalla nascita.
e outras estão noivas desde que nasceram.
а некоторые были
помолвлены ещё с рождения.