Black Clover, Volume 7 (by Yuki Tabata)

In a world of magic, Asta, a boy with anti-magic powers, will do whatever it takes to become the Wizard King! Asta is a young boy who dreams of becoming the greatest mage in the kingdom. Only one problem—he can't use any magic! Luckily for Asta, he receives the incredibly rare five-leaf clover grimoire that gives him the power of anti-magic. Can someone who can't use magic really become the Wizard King? One thing's for sure—Asta will never give up! After the battle with the Eye of the Midnight Sun, the Wizard King suspects that there might be a traitor among the Magic Knights. But who is it, and how can Asta help expose the crooked knight?