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?
An emergency message from 
the 183rd Infantry Division
رسالة طارئة من فرقة المُشاة 183
Eine Notmeldung der 183. Infanteriedivision,
die Bristlich am Ludensee blockierte.
Un mensaje de emergencia
de la División de Infantería 183
Mensaje de emergencia
de la División de Infantería 183
Message urgent
de la 183e division d’infanterie,
Dispaccio urgente dalla 
centottantatreesima divisione di fanteria,
Mensagem de emergência da
 183º Divisão de Infantaria