At the age of 15, every citizen attends the Grimoire Acceptance Ceremony to receive a tome that enhances their magical power. Yuno received the legendary Four-Leaf Clover grimoire, a sign of great fortune and power, previously wielded by the first Wizard King. Asta received nothing.

They were opposites bound by brotherhood. was a prodigy, graced with talent, looks, and a calm demeanor. Asta , the short, loud-mouthed anomaly, was born without a single drop of magic. In the Clover Kingdom, this was a curse worse than death.