Young Karibuchi Hikari is the little sister of Karibuchi Takami, a famous witch who fought against the Neuroi in Europe. Hikari is a hard worker with a lot of stamina, but she lacks her famous sister's magical abilities.  When she gets the chance to go to Europe and fight alongside her sister, she gladly volunteers, but first, she'll have to prove herself by competing with another student at her school.
The enemy won't always fight 
when we want them to.
لن يُهاجم العدوّ في الأوقات التي تناسبُنا دوماً
Der Feind hält sich auch nicht an Zeiten,
die uns genehm sind.
El enemigo no tendrá
en cuenta el tiempo.
El enemigo no tendrá
en cuenta el tiempo.
L’ennemi ne nous laisse pas
choisir les conditions.
Raramente il nemico 
combatte nelle condizioni in cui vorremmo...
O inimigo nem sempre 
batalha quando queremos.