Con la falta de muchos de los caballeros mágicos, Asta y Yuno hacen todo lo posible por vencer a los atacantes.

Asta parte a cumplir su promesa de jugar con los hermanos de Rebecca, pero allí se encontrará con un niña que le provocará problemas por culpa de su hermano...

Asta y Yuno deciden hacer una visita a Hage antes de comenzar el entrenamiento que preparan para fortalecerse de cara al enfrentamiento con la Pica y con los diablos.

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 Magic Knight Squad Captains gather for a meeting and for an award ceremony with the king later. At the meeting, they decide that Asta, Nero, Noelle, Luck, Finral, Mimosa, Leopold, Charlotte and Rill will be going to the Heart Kingdom to train with the Spirit Guardians. At the award ceremony, Yuno advances very quickly in rank.

Noelle and the others were involved in the explosion that Vanica caused back in the Heart Kingdom and were left unconscious. When they woke up, they found themselves in the new home of the elves that was located in a strong magic region just beyond the Heart Kingdom. There, Noelle has an unexpected reunion.