It’s the final match in the Royal Knights Selection Test. Rill seeks inspiration for his masterpiece; Yuno and Bell are ready to try something new.

Yami rushes to Julius’ side as the Wizard King’s battle with Licht draws to a close. Yuno’s team approaches the center of the terrorist’s hideout.

Asta confronts his rival, Yuno, one of many Golden Dawn members to have been taken over by elves. Licht is spurred to action, as are Yami and Finral.

Due to Captain Dorothy’s magic, Vanessa, who can use magic to alter fate and Charmy, who can use magic to recover mana had disappeared. Asta and the remaining Black Bulls have lost the bulk of their defense and are now struggling against Gauche and Marie’s combo magic being used against them. Meanwhile, Vanessa and her team try to figure out how to get out of Captain Dorothy’s dream world.

Yuno manages to enter the Shadow Palace with his pendant and runs into Patry and the others. However, his pendant is immediately stolen. Now, all of the necessary magic stones have been collected and the elves’ wish was supposed to come true. However, an uninvited guest appears before them: A devil from another world. They find out everything that happened between the elves and humans were actually a part of his plan all along. Yuno can’t hide is astonishment at how powerful the devil is as he tries to fight it, and then Asta and Mimosa also arrive!

To stop the devil from leaving the Shadow Palace Asta, Yuno, and Patry, who had just regained his senses, head to the top floor. Once they get there, they are greeted by the first Wizard King, Lumiere Silvamillion Clover and the one who serves him, Secré Swallowtail。Secré is the true form of the mysterious bird, Nero, and she is a mage that uses a rare magic called sealing magic. She uses her magic to break the seal on Licht, and they are able to witness the true leader of the elves, Licht, and his true powers. An epic battle begins so that Licht and Lumiere can get revenge against the devil.

The Black Bulls were ordered by the Wizard King to investigate the devils. Yami takes Asta and Nero and goes to talk to Captain Charlotte of the Blue Rose Knights, since she has experience with forbidden magic and curses. But when they get there, Charlotte suddenly runs off somewhere and they’re all in shock. Charlotte had memories of while Charla took over her body and fears that Yami had found out her true feelings and she ended up panicking. But then, she makes a decision.

The Black Bulls get a sudden visit from Mereleona and she drags them to the strong magic region of the Yultim Volcano. There, the Crimson Lion Kings, as well as their captain, Fuegoleon, and his younger brother Leopold, were waiting for them. Asta and Noelle remember the hot springs they had visited on their previous trip there. Finding new resolve, Magna, Luck, Charmy, Gordon, and Nero all decide to train in the fiery underground cave of the volcano!

Noelle and the other Black Bulls head to Racquey to do some training, when Noelle hears a mysterious voice. Shortly after, the Black Bulls are reunited with Kahono and Kiato. The siblings ask them for help and they head down to the Underwater Temple. There, Gifso explains that a creature called the guardian has gone berserk, so in order to quell its rage, Kahono and Kiato need to present it with their song and dance. Gifso asks the Black Bulls to act as their bodyguards and Yami appoints Noelle and Finral for the job.

The Devil Banishers announce that they will judge Nero and Marie in public. Julius then orders the Black Bulls and other Magic Knights to go rescue them. The Magic Knights place themselves among a crowd that clearly hates the devil, and then the Devil Banishers appear. They then demand that the devil-possessed Asta show himself.

The Magic Knight Squad Captains end up doing a team battle due to Julius’ suggestion. Since the citizens are still weary after the attack by the Eye of the Midnight Sun, they want to prove that they still mean to protect the kingdom and its citizens. The Magic Knights watch in anticipation as their captains split up into two teams and go all out in this battle.

Months after arriving at the Heart Kingdom, Asta still doesn’t have any magic, but he’s become more powerful at an alarming speed due to his training with the Spirit Guardians. Anti-magic is one of the magic attributes that falls into the “Arcane Stage” and is needed to defeat the devil. And because of that, Gaja asks Asta how exactly he obtained the five-leaf grimoire.

The War against the Spade Kingdom begins in earnest as the Heart Kingdom and Black Bulls come under attack by Dante and Vanica of the Dark Triad.

As the situation in the Heart Kingdom deteriorates beyond belief, Captain Yami Sukehiro pushes past his limits.

As the battles in the Heart Kingdom begin to come to an end, Asta and Yami decide to work together as they continue in their fight against Dante Zogratis of the Dark Triad.

Due to Nacht's spell, the Devil who has been granting Asta power since the beginning has appeared physically. To master his Devil powers, Asta must battle and defeat his Devil, and force him to submit. But Asta has other plans... Meanwhile, Yuno, Noelle, and the others grow stronger in order to take their revenge against the Dark Triad.