2 books in series

続・この素晴らしい世界に爆焔を! Konosuba Continued: An Explosion on This Wonderful World!

続・この素晴らしい世界に爆焔を! Konosuba Continued: An Explosion on This Wonderful World! is a 2-book series with 2 released primary works first released in 2016 with contributions by Natsume Akatsuki.

Konosuba: An Explosion on This Wonderful World! Bonus Story, Vol. 1 (light novel): We Are the Megumin Bandits
Konosuba: An Explosion on This Wonderful World!, Bonus Story, Vol. 2