Asta is a young boy who dreams of becoming the greatest mage in the kingdom. Only one problem--he can't use any magic! Luckily for Asta, he receives the incredibly rare five-leaf clover grimoire that gives him the power of anti-magic. Can someone who can't use magic really become the Wizard King? One thing's for sure--Asta will never give up!

To save Yami, the Black Bulls storm their way into enemy territory. And with a powered-up Asta joining the fight, the battle may be going their way. But when the most powerful devil in the underworld finally makes his appeareance, the entire world may be on the verge of destruction!