The introduction of grimoires in Black Clover was the earliest scaling of power we witnessed in the series. Every user received a grimoire, which determined their abilities and their scope. Among the many young and aspiring magic knights, the central duo stood out with their special grimoires. Asta got the unfortunate Five-Leaf one, whereas Yuno was blessed with the Four-Leaf Grimoire. Yuno’s grimoire was known to be special and very few characters in the series have or had it in their possession.

The Four-Leaf Grimoire glows in front of Yuno | Credits: Studio Pierrot Co. Ltd

For the characters and the bystanders in the series, it’s a stroke of good luck that is destined for exceptional individuals. However, there’s more to what having the Four-Leaf Grimoire means for an individual. It brings forth a dark side of the story that was never fully explored by Yuki Tabata. But...