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.
Taking what you want by force... 
That's how the Diamond Kingdom works.
أخذ ما نريده بالقوّة هي الطّريقة
.الّتي تعمل بها مملكة داياموند
Wir holen uns mit Gewalt,
was wir haben wollen.
El Reino del Diamante
toma lo que quiere a la fuerza.
El Reino del Diamante
coge a la fuerza lo que quiere.
Ce qu’on veut,
on s’en empare par la force.
È così che si fa nel Regno di Diamond, 
ci si prende ciò che si vuole con la forza.
O Reino Diamond funciona assim...
Pega o que quer à força.
Мы берём всё, что захотим.