It's been years since the coup d'etat on Zoble, and the demons have managed to remain hidden for that entire time, as the Idaten fruitlessly search for them. But when Miku springs her plan to rendezvous with the Demon Lord, all that is about to change.
I don't think using 
a shared memory for a keyword
لا أعتقد أنّ استخدام ذاكرة مُشتركة لكلمة مفتاحيّة
Eine gemeinsame Erinnerung
als Schlüsselwort zu nehmen,
N’importe qui d’autre
aurait pu penser à un mot de passe
Penso che usare un ricordo in comune come chiave
Eu acredito que usar uma memória
compartilhada de uma palavra-chave
Мне кажется, идея взять ключевую фразу
из общих воспоминаний