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.
But it's not easy getting 
full control of natural mana.
.لكنّ التحكّم الكامل بالمانا الطبيعية ليس سهلًا
Pero controlar
el maná natural no es fácil.
Pero controlar el maná natural
no es nada fácil.
Par contre, ça ne sera pas facile
de maîtriser le mana naturel.
Tuttavia, non è facile 
avere il pieno controllo del mana naturale.
No entanto, não é fácil obter
controle total da mana natural.