KONOSUBA - God's blessing on this wonderful world!

Season 1, Episode 4

Episode Title: Explosion Magic for This Formidable Enemy!

Air Date: 2016-02-04

Overview:

All of the weak monsters have gone into hiding since a leader of the devil king's army has settled in near town. Kazuma, who had been focusing on improving his skills, is stuck at a standstill. With nothing else to do, Kazuma tags along with Megumin's training, which consists of unleashing explosion magic into an abandoned castle.