Becoming the kingdom's strongest mage seems a distant ambition for Asta, who cannot use magic despite his efforts to awaken it through physical training. His childhood friend Yuno, by contrast, possesses remarkable magical power and control. Abandoned at the same church on the same day and raised together, the two have promised to compete for the title of Wizard King.
At 15, Yuno receives a four-leaf clover Grimoire, while Asta receives none. Soon afterward, Revchi attacks Yuno to steal his Grimoire. Asta intervenes but is overwhelmed. Hearing Yuno's voice gives him the strength to keep fighting, and in a surge of rage, he receives a five-leaf clover Grimoire known as the Black Clover. Its power allows him to defeat Revchi. A few days later, the friends set out into the world, each determined to become Wizard King.
