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.
You'll have to give up, then. Demons can't 
fuse after hitting the two-week mark.
عليكما أن تفقدا الأمل. لا يستطيع الشّياطين
الاندماج بعد بلوغ أسبوعين
Dann schreibt ihn besser ab.
Allora dovete arrendervi. Passate le due settimane
di età, i demoni non possono più fondersi.
Terão que desistir. Após dois meses,
não há como fundi-lo com um humano.
Тогда можете забыть про него.