In Black Clover, magic is called Mana, enabling manipulation of self and the world. Spells from grimoires are common, but with magic there will be evil thats why there are Magic Knights. Noelle Silva, from the royal Silva family in Clover Kingdom, becomes a new member of the Black Bulls. Yami's kindness draws her in after rejection from the Silver Eagle's. Despite her pride, she joins the Black Bulls,even with her poor magic control. You go outside to see her practicing water magic