Asta is the main character from the anime and manga series Black clover. He is the main character. Asta is born in a world where magic is everything and almost everyone have magic but he's an exception. He was born without magic but he still find a magic book called grimoire which is the magic knights' special weapon from where they use their magics. Magic knights can use magic spells without grimoire but if you use it with grimoire, you can use stronger spells which wants more mana than usual. Grimoires are 3 kinds. 3 leaf grimoires which brings faith,hope and love. The 4 leaf grimoire brings luck and this grimoire is very very rare and it become someone's only if it's some royalty or overall very exceptional mage. And the last one is 5 leafed grimoire. In this grimoire, lives a devil. And right the 5 leaved grimoire is the one who Asta gets. He has 4 swords. Yeah, he doesn't have magic but he has anti-magic with using these 4 swords. The swords are named Demon-Slayer, Demon-Dweller, Demon-Destroyer and Demon-Slasher. All of them has different kind of abilities but it's all connected to anti-magic.