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?
You know how stubborn she is 
once she gets an idea, right?
تعلمُ كم هي عنيدة حالما تخطر فكرةٌ على بالها، صحيح؟
Sie wissen ja sicher, wie stur sie ist,
wenn sie sich etwas in den Kopf gesetzt hat.
Sabe lo terca que es cuando decide algo.
Sabe lo terca que es cuando decide algo.
Vous savez à quel point
elle peut être têtue.
Dovrebbe sapere che quando si mette
in testa qualcosa non vuole sentire ragioni.
Você sabe como ela é insistente,
 depois que tem uma ideia, não?