Asta to młody chłopiec, który marzy o zostaniu najsilniejszym magiem w królestwie. Jest tylko jeden mały problem - młodziak nie potrafi używać żadnej magii! Okazuje się jednak, że ma więcej szczęścia niż rozumu - otrzymuje niesamowicie rzadki grymuar pięciolistnej koniczyny, który udostępnia mu moc antymagiczną! Czy ktoś, kto nie potrafi używać mocy magicznej może zostać Cesarzem Magii? Jedno jest pewne - nasz bohater nigdy się nie podda!.

Aście w końcu udaje się zdobyć swój grimoire i razem z Yuno ruszają na egzamin rekrutacyjny do zakonu magicznych rycerzy. W końcu mają szansę zrealizować marzenie, do którego obiecali sobie dążyć dawno temu, gdy byli jeszcze mali. Co takiego wydarzyło się przed laty, że Yuno z dnia na dzień zmienił się z beksy w dojrzałego mężczyznę, a Asta zaczął dzień w dzień wracać do domu brudny i poobijany? Dlaczego chłopcy tak bardzo pragną zostać Cesarzem Magii?.

„Asta i Yuno w końcu wykonują pierwszy krok na drodze do tytułu cesarza magii - dostają się do Zakonu Magicznych Rycerzy. Mimo tego, jak zawsze zresztą, znajdują się na dwóch biegunach - Yuno w poważanym i cenionym Złotym Świcie, natomiast Asta w szalonych i nieprzewidywalnych Czarnych Bykach. Czy Asta znajdzie wspólny język z dziwakami z najgorszego oddziału w całym zakonie?! Mą magią wytrwałość!”.

„Asta i Yuno, którzy w dzieciństwie złożyli sobie obietnicę, że wszystkich zdobytych przyjaciół będą traktować jak rodzinę, stają do walki ramię w ramię ze swoimi nowymi braćmi i siostrami! Czy zdołają pokonać niewiarygodnie silnych przeciwników z Królestwa Diamond? Mą magią wytrwałość!”.

The Black Bulls seem to be on the losing end of an epic clash between two highly gifted magic users. Gauche has an idea that could turn the tables.

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.

Asta undergoes a startling transformation, fighting like a man possessed. When he learns who’s behind this change, he also learns its shocking price.

The long-awaited showdown between Finral and Langris has come around at last, and gentle Finral must prove himself to his cutthroat little brother.

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.

Fierce fighter Mereoleona takes on Raia of the Third Eye and his wide range of formidable Copy Magic spells as Zora tries to figure out how they work.

The battle rages on between the Wizard King and Licht, who holds a kingdom’s worth of innocent people hostage. Julius recalls his greatest motivation.

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.

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.

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.

Licht and Lumiere fight against the devil using incredibly powerful magic. But the devil has incredible regeneration powers and quickly heals himself, making him difficult to defeat. Asta witnesses the two powerful mages fighting and tries to figure out if he can use his anti-magic in a more useful way. He’s able to use a new power, but it’s so powerful that he’s having a hard time controlling it. Meanwhile, Yuno also awakens to a new power… Asta and Yuno, who both aspire to be the future Wizard King, pull off an impressive attack in front of the first Wizard King!

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?!

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.

The Spade Kingdom successfully takes over the Diamond Kingdom and then sets their sights on the Clover Kingdom and Heart Kingdom. The Spade Kingdom troops get through the strong magic region using a mobile fortress which sucks up the mana of the Spade Kingdom citizens who were taken by force. But then Asta, who had finished his training with the Spirit Guardians, comes to the rescue! Meanwhile, Luck and Leopold head to the Spade Kingdom in order to try to take over one of their bases.

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.

Grey reminisces on her past. Meanwhile the fight between Dante and Asta is continuing!

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.