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.
At the same time, a new Neuroi nest 
was being established in Europe.
في نفس الوقت، كان يتكوّنُ عشُّ نيوروي جديد في أوروبّا
Zur selben Zeit
erblickte in Europa
Mientras tanto, en Europa,
Mientras tanto, en Europa,
Pendant ce temps, en Europe,
In quel momento,
Enquanto isso, um novo ninho
 Neuroi era criado na Europa.