Volume 6 (Manga)

Information
At the invitation of his brother Giran, who is studying abroad, Noru decides to go on vacation with Emma and Lola to the city of Hornest. However, what Noru saw there was a swarm of monsters attacking the city! The phenomenon was a "great invasion" --- it is said that monsters rushed in large numbers periodically. The party who will be responsible for the defense of the city of Honest.