The incident with the Devil Believers had come to a close. This whole incident ends up hurting Nero, who witnessed the pain the Devil Believers felt from having less mana and reminds her of her time with the first Wizard King, Lumiere and the magic item he was trying to create to get rid of discrimination in their kingdom. She then gets summoned by Julius. Meanwhile, Asta and the others receive a message saying that the Heart Kingdom and the Spirit Guardians were ready to train them for their fight against the devil.
The reason the preparations for 
your training took so long...
...سبب استغراق تجهيزات تدريبكم لوقت طويل
Der Grund, warum die Vorbereitungen für
euer Training so lange gedauert haben, ist, …
Tardamos en estar preparados
para su entrenamiento
Hemos tardado en estar preparados
para vuestro entrenamiento…
La raison pour laquelle
nous avons mis autant de temps,
Dicevo, il motivo per cui
ci è voluto così tanto per i preparativi...
A razão pela qual os preparativos para
o seu treinamento demoraram tanto...
Так вот, мы так долго готовились, потому что…