Though the Magic Knights were able to save Marie from the Devil Banishers, Nero is taken once again and Asta’s 5-leaf clover grimoire is also stolen. Suddenly, they receive a message from one of Damnatio’s subordinates and learn the true identities of the Devil Banishers and Julius orders the Black Bulls yet again to save Nero. The Black Bulls begin their investigation in the town where they think the Devil Banishers were gathering. Will they be able to find out what the enemy’s true motive?
The potion that put my 
best friend Asta to sleep,
،العقار الذي نوّم أعز أصدقائي أستا
Das Schlafmittel, das gegen meinen
besten Freund Asta verwenden wurde,
El somnífero que usaron en mi amigo Asta
El somnífero que usaron
con mi amigo Asta
… que le somnifère jeté
sur mon cher ami Asta
Sia la pozione che ha addormentato 
il mio caro amico Asta
A poção que fez meu
melhor amigo Asta dormir,
Снотворное, которым усыпили
моего друга Асту,