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...
but I learned to read his mana and 
calmly control my flames!
!لكني تعلمتُ قراءة المانا الخاصة به والتحكم في لهبي بهدوء
aber ich lernte das Mana zu lesen
und meine Flammen mit ruhiger Hand zu führen.
je l’ai presque perçu
ma poi ho imparato a leggere il suo mana 
e controllare le mie fiamme con calma e precisione!
mas aprendi a ler sua mana e a
controlar minhas chamas racionalmente!
Но я прочитал ману…
и почти ухватил суть спокойного пламени.