Black clover, vol. 4

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!Complete chaos has broken out as the Clover Kingdom capital comes under attack by a group of mysterious terrorists. Asta and the other Magic Knights join the fight in order to protect the innocent civilians, but what exactly are the terrorists after?