The protagonist of the story is Asta, a young orphan boy who is born without any magic abilities in a world where magic is everything. Despite this major setback, Asta dreams of becoming the Wizard King, the most respected and powerful magic wielder in the Clover Kingdom.
As Asta trains to become stronger, he discovers a plot by four banished Wizard Kings to seek revenge on the Clover Kingdom and crush it. These four powerful wizards were exiled years earlier for their evil deeds, and they have returned with an army of magical creatures to take over the kingdom and rule with an iron fist.
Asta and his friends in the Magic Knights must band together to face this grave threat and defend their home against overwhelming odds. Along the way, Asta learns the true meaning of friendship and sacrifice, and comes to understand that even without magic, he can still be a hero and make a difference in the world. With magic and sword in hand, Asta sets out to become the hero that the Clover Kingdom needs to save it from ultimate destruction.