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…

As Asta and the others were chasing the creature that lived in the cave beneath the Yultim Volcano Trail, they happened upon a dungeon. They were then ordered to explore the dungeon by the royal capital, so they split into groups and went in. They head in with Leopold and Vice Captain Randall, but those two end up running into the creature from earlier. They work together but cannot defeat the monster, which makes Leopold feel useless. At that moment, Leopold remembers the strange feeling he felt when he was fighting the elves, and…

Zora wanders off from the rest of the Black Bulls and heads back home to his village to visit his father’s grave. He then meets a boy from his village named Ina. Ina idolizes Zara who became the first peasant to become a Magic Knight and was training hard in hopes to be like him someday. But then, Ina is confronted by a noble boy named Kaito, who was visiting the village on vacation, and is told that his dreams are futile. Enraged, Ina tries to fight Kaito, but Zora stops him. Zora then tells Ina a little story.

The Golden Dawn was hard at work trying to get the kingdom back onto its feet. They were trying to make amends for the trouble they had caused while they were possessed. Captain Vangeance puts Alecdora Sandler in charge of a mission. Alecdora can’t hide his dislike for Yuno so he tries his best to earn more merit than him.

Asta, Noelle, and Magna manage to catch up to the Devil Believers who had taken Nero. But they find that the Devil Believers have now grown in numbers. Magna goes back to tell Yami of the situation. Asta and Noelle are left behind and try to do what they can to save Nero. But it appears that the Devil Believers have made up their minds on achieving their goal, even if it costs them their lives.

Asta and Yuno were abandoned together at the same church and have been inseparable since. As children, they promised that they would compete against each other to see who would become the next Emperor Magus. However, as they grew up, some differences between them became plain. Yuno was a genius with magic, with amazing power and control, while Asta could not use magic at all, and tried to make up for his lack by training physically. When they received their Grimoires at age 15, Yuno got a spectacular book with a four-leaf clover (most people receive a three-leaf-clover), while Asta received nothing at all. However, when Yuno was threatened, the truth about Asta’s power was revealed, he received a five-leaf clover Grimoire, a “black clover”! Now the two friends are heading out in the world, both seeking the same goal!

For some reason, Charmy, who had tagged along with Asta and the others to train in the Heart Kingdom, keeps trying to eat up all of the food in the Heart Kingdom. Asta tries to take her back and goes to the forest Charmy is last seen. However, Charmy had also trained with the Spirit Guardians and had become even more powerful. Meanwhile, Yuno is contacted by Sister Lily and heads back to his home village of Hage.

Yami strikes Dante what should have been a mortal blow, but he recovers quickly with the Power of his Devil. Asta witnesses his own Devil seethe in frenzy. In the Heart Kingdom, Charmy and Leo battle more Dark Disciples.