Asta and the other Magic Knights chosen to train in the Heart Kingdom are joined by Magna and they finally start their training under Loropechika and the Spirit Guardians of Lightning, Earth, Plants, Fire, and Wind and Undine. Since Asta has no magic to begin with, he ends up sparring with Gaja, the Spirit Guardian of Lighting.  They Magic Knights all work harder to surpass their limits.
I mean, I think Gaja decided that, but...
...أظنّ أنّ غاجا-سان قرّر ذلك، لكن
Das hat sich Herr Gaja so überlegt.
Gaja planeó los grupos
con algo en mente.
Il semblerait que ce soit Gadjah
qui ait réfléchi à ça.
Beh, temo che sia stato Gaja a deciderlo...
Quer dizer, acho que o Gaja-san
decidiu por isso, mas...
Ну, наверное, так решил Гаджа?