As Asta and the others were chasing the creature that lived in the cave beneath the Yultim Volcano Trail, they happened upon a dungeon. They were then ordered to explore the dungeon by the royal capital, so they split into groups and went in. They head in with Leopold and Vice Captain Randall, but those two end up running into the creature from earlier. They work together but cannot defeat the monster, which makes Leopold feel useless. At that moment, Leopold remembers the strange feeling he felt when he was fighting the elves, and...
According to a book that Master 
Julius found in the library,
،وفقًا للكتاب الذي وجده يوليوس-ساما في المكتبة
Laut eines Buches,
das Fürst Julius in der Bibliothek fand,
Según unos documentos
de la biblioteca del señor Julius,
Según unos documentos
de la biblioteca del señor Julius,
D’après un texte trouvé par Julius
dans la bibliothèque du château,
Stando a un libro che il nobile Julius 
ha trovato nella biblioteca,
De acordo com um livro que o
Julius-sama encontrou na biblioteca,
Судя по документам, которые
лорд Юлиус нашёл в кладовой замка,