Izetta is powerful enough to fight whole armies, but her strength is limited.  She can only use her abilities near certain ley lines, and outside them, she's no different than a normal girl. When the Germanian army attacks in a spot far from these ley lines, the duchy is forced into a corner: how can they repel these foes without giving up the secret of Izetta's strength?
And they've issued us a challenge.
!وقد أعلنوا عن تحدّينا
Und dann knallen die uns auch noch
eine schriftliche Herausforderung hin.
y nos mandan un desafío.
y nos mandan un desafío.
En nous envoyant un défi,
qui plus est !
Per di più, così facendo, ci presentano 
una rabbiosa lettera di sfida!
E ainda nos desafiou!