The Black Bulls were ordered by the Wizard King to investigate the devils. Yami takes Asta and Nero and goes to talk to Captain Charlotte of the Blue Rose Knights, since she has experience with forbidden magic and curses. But when they get there, Charlotte suddenly runs off somewhere and they’re all in shock. Charlotte had memories of while Charla took over her body and fears that Yami had found out her true feelings and she ended up panicking. But then, she makes a decision.
a forbidden curse that used 
power from another world.
.لعنة محظورة استعملت قوة من عالم آخر
dass es ein verbotener Fluch war,
der Kraft aus einer anderen Welt beinhaltete.
si trattava di una maledizione proibita, 
il cui potere proveniva da un altro mondo.
uma magia proibida que usou
poderes de outro mundo.