Dullahan, a top leader in the Devil King's army, yet again appears at the city in a frenzied rage.

"I want money." After paying back the debt Aqua has racked up, Kazuma and Aqua's monetary situation grows even more dire. The party accepts a quest to kill helpless Snow Sprites and heads for the snowy mountains in order to escape from the stables during this winter so cold it freezes Kazuma's eyelashes solid.

Kazuma and Aqua can't properly accept rewards from quests due to their mediocre party lineup, and are so destitute that even keeping wood on the fire is difficult. Kazuma comes up with a plan and visits a magical accessories shop run by a woman called Wiz.

Kazuma runs into some adventurers he knows while out for a walk and decides to go with them to a shop run by succubi said to show its customers enticing dreams.

The rampaging ancient weapon: the mobile fortress, Destroyer, is headed straight for Kazuma and party's city!

The party ends up running into Megumin's self-proclaimed rival, Yunyun, during a trip to Wiz's shop. Annoyed at the increased noise level brought on by additional company, Kazuma notices a choker at his feet. After trying it on casually, he runs into big trouble: it's a magical choker designed to make wishes come true, and until his wish does come true, it's going to keep tightening around his neck until he's strangled to death! The others work hard to help make his "dreams" come true so that the choker will come loose, with Wiz offering her thighs as pillows, Darkness doing push ups to make her chest sway, and Megumin and Yunyun engaged in strip rock paper scissors... while Aqua runs errands. But will even that be enough to make the choker come off?

A new discovery in a previously mapped out dungeon might be the first step toward Kazuma repaying his massive debt. Unfortunately for him, Aqua is determined to help.

As a result of a magic circle that Aqua had drawn in Keele's dungeon, strange explosive doll monsters have started to appear, putting the town at risk.