While his rival Yuno is a prodigy blessed with a four-leaf grimoire, Asta is a loud, muscle-bound anomaly who trains his body to the absolute limit. His life changes forever when he receives a mysterious five-leaf grimoire inhabited by a demon. This book grants him Anti-Magic the unique ability to nullify, reflect, and cut through any spell. Alongside the Black Bulls, a squad of misfit mages, Asta fights to protect a kingdom that once looked down on him, proving that your origins don't define your destiny.