Zoku Kono Subarashii Sekai ni Bakuen wo! (続・この素晴らしい世界に爆焔を！)
In celebration of the first anime adaptation, the author ran a character popularity poll with the top choice getting a short story. With the overwhelming popularity and response, a full volume was written featuring Megumin and Iris. Continuation focuses on the activities of Megumin, Yunyun, and Iris during the timeframe between volumes 8 and 9 of the main series. Megumin, inspired by a mysterious masked thief, forms a chivalrous thieving group for the sake of the people!