After an explosive encounter with a powerful magic user, Megumin informs her ...
Konosuba: An Explosion on This Wonderful World!
Season 1 Episode 5: Prelude to an Explosion of Madness
The seal on the Dark God's tomb is broken, the servants of said Dark God are everywhere in the village and Komekko is nowhere to be seen. Megumin must make an important decision in order to save her sister.