Noelle and others were involved in the explosions that Vanica caused back in the Heart Kingdom and left unconscious. When they woke up, they found themselves in the new home of the elves that was located in a strong magic region just beyond the Heart Kingdom. There, Noelle has an unexpected reunion. Meanwhile, Asta was learning from Nacht how to control his devil powers, but it was a very dangerous method. But in order to save Yami from the Dark Triad, Asta decides to undergo this trial.
All the skulls you see in the altar are 
those who failed the devil-binding ritual.
كلّ الجماجم التي تراها في المذبح تخصّ
.من فشلوا في طقس الارتباط بالشيطان
Die Totenschädel dort
sind die Schädel derjenigen,
Los huesos del altar son
de los que fracasaron el ritual.
Los huesos del altar son
de los que fracasaron el ritual.
Tous les crânes de cet autel
appartenaient à ceux qui ont échoué.
I teschi che vedi nell'altare appartengono
 a persone che hanno fallito questo rituale.
Todos os crânios que você vê no altar
Видишь, сколько здесь черепов в нишах?
Останки тех, кто не совладал с обрядом.