While Asta and the other Black Bulls were fighting with Fana, Fanzell was facing off with the forces of the Diamond Kingdom, which he used to be a part of. The forces happen to be led by two of Fanzell's former students, Ladros and Mars. Fanzell left the Diamond Kingdom because he didn't agree with the kingdom's methods, but before, he would train children on how to use their powers for the Diamond Kingdom. Fanzell tries to reason with his former students, but Ladros attacks regardlessly, forcing Fanzell to fight with them.
even if it means killing 
everyone in this forest.
.حتّى وإن عنى ذلك قتل كلّ من في هذه الغابة
unbedingt haben, auch wenn wir
alle Waldbewohner abschlachten müssen.
même si on doit pour cela
mettre cette forêt à feu et à sang.
anche a costo di sterminare 
tutti gli abitanti della foresta.
mesmo que signifique
matar toda a floresta.