After struggling to defeat some giant frogs, Kazuma and Aqua seek out members to join their party; they soon discover Megumin, a magician capable of performing powerful explosions.

Kazuma forms a group of adventurers who's first challenge is to defeat an army of flying cabbages.

The leader of the Devil King's army seeks revenge after an attack on his castle; Aqua removes a curse.

There are only hard quests being available, but wanting to earn money, Aqua takes on a request to purify a lake filled with alligator monsters; the others put her in a cage to keep her safe.

Megumin continues to use Verdia's castle for explosion practice; annoyed, he summons an undead army, but it is quickly defeated by Megumin's explosion magic.