Yuno and Asta are two young heroes who have the same dream: that of becoming the next Mage Emperor of Clover's kingdom, thanks to the power you omnipresence of magic. Best friends and raised side by side since their tender childhood, our two heroes are however radically different, since if Yuno is naturally gifted for magic, Asta is a priori incapable of manipulating it. This is how during the ceremony of awarding their grimoire to the school of the Mages, Yuno receives the legendary grimoire with the four-leaf clover while Asta, on the other hand, goes away from his examination. But very quickly, an ancient and mysterious five-leaf decorated black work arises before him! An antimagy grimory that might well reserve a future full of adventures for our young hero, who will soon have to compose with his fate out of the ordinary.