Suddenly the dungeon is host to several teams racing through traps to the treasure waiting in its depth—including a noted mage from an enemy nation.

Asta and the other Black Bulls continue their training in order to face off with the devil. Charmy is trying to use her cotton magic and her Sheep Cooks to create food to enhance her friends’ mana, but she realizes she lacks training. She then decides to seek out someone who can help her. Meanwhile, Gordon is also unhappy with his inability to help his friends, so he decides to go off to train on his own.