English:
Asta and Yuno were abandoned together at the same church, and have been inseparable since. As children, they promised that they would compete against each other to see who would become the next Emperor Magus. However, as they grew up, some differences between them became plain. Yuno was a genius with magic, with amazing power and control, while Asta could not use magic at all, and tried to make up for his lack by training physically. When they received their Grimoires at age 15, Yuno got a spectacular book with a four-leaf clover (most people receive a three-leaf-clover), while Asta received nothing at all. However, when Yuno was threatened, the truth about Asta's power was revealed, he received a five-leaf clover Grimoire, a "black clover"! Now the two friends are heading out in the world, both seeking the same goal!

Polish / polski:
Asta to młody chłopak, który marzy o zostaniu największym magiem w królestwie. Jest tylko jeden problem: nie potrafi używać żadnej magii. Na szczęście otrzymuje Pięciolistną Koniczynę, niesamowicie rzadką księgę czarów, dzięki której chłopak zyskuje moc niwelowania wszelkiej magii. Czy ktoś, kto nie używa magii, może zostać Imperatorem Magii, magiem nad magami? Jedno wiemy na pewno: Asta nigdy się nie podda.

Portuguese (BR) / Português (BR):
Em um mundo em que até as tarefas mais simples do dia a dia são feitas com o uso de magia, quem não consegue usá-la é tratado como nada! Esta é a vida de Asta, um jovem que mesmo sem um pingo de magia, sonha em se tornar o Mago Imperador, o mais forte de todos os magos! Com muito esforço e trabalho duro, será ele capaz de atingir seus objetivos e superar seu genial rival e amigo de infância, Yuno?!!

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