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 would think that the Idaten's 
limitless capacity for growth
أعتقد أنّ قدرة الإيداتين على تعزيز قوّتهم بلا حدود
Es ist auch nicht gerade fair, dass Idaten quasi
unendlich stark werden können durch Training.
À mon avis, c’est tout aussi fou
que les Idaten puissent
Io direi che non è giusta neanche la capacità
degli Idaten di crescere senza limiti
Eu diria que os Idatens
que tem melhoria infinita
Безграничное развитие идатэна
при тренировках