Thanks to Gordon’s father, Asta and the others were able to find out that there might be clues surrounding the devils in the Heart Kingdom and manage to get permission to enter the kingdom due to the fact that Mimosa had gone there previously to study overbroad. Asta, Noelle, Finral, Mimosa and Nero head to the Heart Kingdom. Asta and the others initially enjoy their trip there, but something that Langris told Finral had been bugging Finral. Suddenly, Asta and the others are faced with a rather unexpected trial. Will Asta and the other Black Bulls be able to obtain information on the devils?!

Asta and the others manage to meet with the queen of the Heart Kingdom, Loropechika, who had also been chosen by the water spirit, Undine. They are able to confirm that the devil’s curse that they spotted in the Heart Kingdom was originating from Loropechika herself and that the devil was in the Spade Kingdom. Meanwhile, Vanessa, Magna, and Luck went to investigate the Diamond Kingdom and find it in ruins after a single mage of the Spade Kingdom had annihilated them. In order to defeat this devil, Loropechika asks Asta and the others for their help…

The Magic Knight Squad Captains decide to have a meeting about the problem with the devils that ended up involving the whole Clover Kingdom. Asta and the others who were in the Heart Kingdom were also summoned and they disclose the information they gathered in front of Julius, Damnatio, and the Captains. After hearing what Asta and the others had to report, Julius tells everyone what they need to do in order to deal with the devil Megicula.

Asta and Yuno are given permission to go home to Hage for a little while. Asta was being called a devil in the papers, but Father, Sister Lily, everyone at the church, as well as the people who even used to make fun of Asta and Yuno because they were orphans, welcomed them home with open arms. Asta and Yuno see that they had gone down the right path and all their hard work wasn’t for nothing, and then…

In a break from all the action, a forest-foraging Charmy falls victim to a mind-altering mushroom that gives her vivid visions of Clover Clips past.

Asta’s never-give-up attitude has a impact on his fellow Black Bulls. Vetto recalls his youth, while Yami comes to a realization and takes action.

Yami suggests a leisurely bath to get Asta out of his funk. While there, he reminisces about his first battle alongside the masked William Vangeance.

After their last battle, Asta and some of the others decide to chase after Captain Yami and some others who had already headed into the Shadow Palace. However, the elves get in their way. It was then that Captain Fuegoleon and Captain Mereoleona, both who had just awakened, showed off their true powers. Asta and the others are happy to have their help, but then notice that the door to the Shadow Palace closing. In order to get Asta and his group into the palace, the other Black Bulls hold off the elves outside.

The Black Bulls fight off the elves as Asta and the captains head into the Shadow Palace. However, they start to feel cornered from being so run down from one battle after another. It was then that Yuno had finally arrived to save them, bringing other Magic Knights he found throughout the land with him. Yuno hears the situation from Charmy and decides to head into the Shadow Palace, too. However, the entrance was now closed. But then, his pendant starts to react in a strange way…

The battle involving the whole Clover Kingdom is finally over. But because of the battle, the kingdom was heavily damaged, so the Magic Knights were busy trying to repair everything. Meanwhile, someone rather unexpected shows up in front of Asta and the others and states three problems that will come up for the Clover Kingdom. Asta and the others are surprised, but just as they were told, someone showed up to try to judge Asta and his devil power.

Because she used forbidden magic, Nero survived for centuries. In the back of her mind, memories from long ago start to replay in her head. From when Nero was still called Secré and when Secré first met the most powerful and talented mage in the Clover Kingdom, Prince Lumiere. They become friends with Licht and the other elves, but due to the evil plans of a devil, the humans end up killing all of Licht’s comrades. Because of that, Licht ends up turning into a demon and Lumiere finds him in that state. What will he have to do to protect the ones he loves?

After using forbidden magic in the fight against the devil, Secré turns into a bird and ends up spending centuries all alone. During that time, she ends up meeting Asta, who ends up with Licht’s grimoire that has a different devil residing in it. Patry ends up reviving due to resurrection magic, and then he becomes the leader of the Eye of the Midnight Sun and vows to get revenge. This was all according to the devil’s plan and Secré uses her sealing magic to free Lumiere and Licht so they can finish off the devil once and for all along with Asta. The battle comes to an end, and Secré now begins her new life as a member of the Black Bulls.

The Black Bulls return to where their base originally was. Henry has to return the Raging Bull back into their hideout, but apparently, that takes some time. Meanwhile, Yami tells the Black Bulls to go find the magical beasts that escaped from the hideout. They had run away when Rades and the others had attacked the hideout and had been wandering around the forest ever since. There was even a chance that they had returned to their feral states. Their fear comes true, as one Black Bull is attacked after another.

In order to find out more about the forbidden curse, Asta, Gordon, Grey, and Gauche head to Gordon’s house, since he comes from a family of famous curse mages. Once they get there, they can’t help but show their wariness towards Gordon’s family. But in the end, they end up finding out valuable information while they’re there. Meanwhile, Noelle goes to talk to the Dorothy Unsworth, the Captain of the Coral Peacocks, after her brother tells her to talk to her to find out the truth behind their mother’s death. Dorothy tells her the name of the devil who had killed her mother, and the same name is spoken by Gordon’s grandmother. That devil’s name is…

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.

Old friends and fellow squad members reminisce about Asta: his humble beginnings, his craziest battles—and underlying it all, his burning ambition.

Yami tells another tale of his younger days in the Magic Knights: a top-secret mission given to him and William Vangeance by the Wizard King himself.

Those who have passed the Royal Knights Selection Test assemble for the first time to be briefed on their mission: defeat the Eye of the Midnight Sun.

Asta gets shocking news from the top doctor in the entire Clover Kingdom. His fellow Black Bulls rally behind him, scrambling to find a way to help.

Julius asks Marx to do a favor for him. He wanted him to help with creating new magic items as well as take care of some bandits. Marx is accompanied by the former member of the Eye of the Midnight Sun, Sally, to the Black Bulls’ hideout in order to conduct experiments for magic item research. Next, he travels with Captain Fuegoleon and Captain Nozel to investigate the bandits. Apparently, Julius had visited even that faraway town in disguise before…

William Vangeance opens up to Yami about his past, while Finral stands up to his brother Langris. Julius questions the Diamond Kingdom’s intentions.

Asta and Yuno spend six months training for the upcoming Magic Knights Entrance Exam. Everyone seems to think Yuno is sure to pass, but worries that Asta is just wasting his time.

The Magic Knights: heroes that everyone in the kingdom looks up to and dreams of becoming one day. But the new recruit, Asta, has yet to do anything that seems like what a Magic Knight should be doing, as he’s stuck doing random chores.

The Clover Kingdom can barely breathe a sigh of relief before the border village of Kiten is attacked by the Diamond Kingdom’s most fearsome generals.

The Royal Knights relocate to the royal capital in preparation for their attack on the floating dungeon in Gravito Stones. Klaus warns of enemy spies.