The first time Asta met Fanzell Kruger was shortly after he received his grimoire. In order to train with his new anti-magic sword, Asta holes up in the woods and meets Fanzell, who is looking for his missing fiancée, Dominante Code. Fanzell uses wind magic and is able to turn wind into a sword so he helps Asta train. One day while they’re in the forest, someone comes for Fanzell’s life...
I'm pretty sure you're 
just a good teacher, Zell.
.أنا واثق أنّك معلّم جيّد فحسب يا عمّ زيل
Es que enseñas muy bien, viejo Zell.
Es que enseñas muy bien.
Je trouve quand même
que t’as un don pour enseigner, Zell.
Sono abbastanza sicuro che sia tu 
ad essere un ottimo insegnante, Zell.
Tenho certeza de que você
é que é bom professor, Zell.
А я вот думаю,
что вы замечательный учитель, Зель.