Out of nowhere, devout followers decide to throw an "Aqua Festival" and Kazuma gets dragged into helping out. At the same time, Chris asks for Kazuma's help with a festival of her own. While all this is going on, Chris also ropes Kazuma into infiltrating a mansion to recover the Sacred Treasure, the "Talking Armor." Between helping out with two different festivals and tracking down another Sacred Treasure, can Kazuma catch a break...?

Game loving shut-in Kazuma Sato's life as a young schoolboy in Japan abruptly comes to an early end...or at least it was supposed to. When he opens his eyes, though, he sees a beautiful goddess that offers him a once in an after-lifetime chance to be reborn in a parallel world. The catch is that the world is violent and threatened by a growing evil! Fortunately, he can choose any one thing to bring with him. So he chooses the goddess, Aqua! And so his adventure with his gorgeous companion begins--if he could just get enough money and food to survive, keep his goddess out of trouble, and avoid grabbing the attention of the Demon King's army!

After Kazuma and crew's less-than-relaxing vacation, Yunyun burst onto the scene with shocking news-the Crimson Magic Clan is in danger, and she wants to bear his children to save it! Kazuma returns with her to the village, but the situation isn't quite what he expected...

ETERNAL LIFE CAN GET LONELY There’s a stalker on the loose! …Or so it would seem. Apparently, Wiz has been receiving a lot of attention from a mysterious man. After some eavesdropping reveals the terrifying extent of his knowledge about her, she receives a letter requesting they meet. And when she brings it to Vanir and Kazuma, Vanir gets unusually worked up and threatens to take action! This gives Wiz the push she needs to handle the issue herself…but it looks like someone has been filling her head with weird ideas. For starters, why is she acting like a blushing bride to be?!

I WANT A LITTLE SISTER! As Kazuma spends his downtime bemoaning his party's lack of a little-sister archetype, he's invited to a royal banquet, where he meets the young Princess Iris. She's enthralled by his tales of adventure, and once she takes a liking to him, Kazuma ends up getting transported to the royal castle! Though he's initially unsure of what to expect, life with Iris turns out to be a dream come true, and Kazuma doesn't ever want to wake up. . .so when he hears rumors of a "righteous thief" stalking the capital, Kazuma declares he'll be the one to capture the dastardly do-gooder!

After successfully saving the town from Mobile Fortress Destroyer, Kazuma is ready to sit back and enjoy the hero treatment: fame, fortune, and...criminal charges?! Now in hot water with the law, he has to find a way to clear his name with the help of Aqua, Megumin, and Darkness before the judge can sentence him to death. Darkness has a plan to buy more time, but will it be enough...? After all, in this wonderful world, who knows what'll happen?

A fateful encounter!In its endless war against the Demon King’s army, the capital faces a new crisis in the form of the enemy’s latest general—the dark god Wolbach. When Magumin learns of Wolbach’s approach, she drags Kazuma (against his will) to a fortress just on the edge of the front line so they can mount a defense. But to their horror, they discover that Wolbach is also a user of Explosion magic! Just what is this Explosion master’s relationship to Megumin..? And what could she possibly want with Chomusuke?!

Kazuma's first winter in another world isn't going so well. With companions like Aqua (Arch-priest), Megumin (Arch-wizard), and Darkness (Crusader), his party of advanced classes should be the most powerful in Axel--but they're so dysfunctional, even the easiest-seeming quest goes terribly awry, and they can barely save enough to afford a stable! When an opportunity arises to stay in a mansion, it's like a dream come true--the only catch is that they have to exorcise the evil spirits haunting it. Goddess Aqua is an expert with the undead, so the quest should be a piece of cake, right...? Unfortunately, with this useless goddess, things have a way of working out for the worst...

Luck be a lady tonight!Seeking financial support in the fight against the Demon King's army, Princess Iris visits the neighboring nation of Elroad to meet the prince: her husband-to-be. But Kazuma won't hand over his little sister to just anyone! Scratch that. He won't hand her over, period! Posing as her escort, he tags along in an attempt to derail yet another wedding (and rake in the dough). But no sooner than they arrive in Elroad are they informed that the engagement is off, and there won't be any financial support at all! And so it falls to Kazuma to use his wit and insanely good Luck to milk the Casino Kingdom for all it's worth!

After declaring that she wants to bear Kazuma's child, Yunyun reads a startling letter addressed to her designated baby daddy and runs off to Crimson Magic Village! Kazuma and the gang give chase, but the way to the village is packed with monsters-many of whom are looking for mates! By the time they arrive, Kazuma may end up with more children than he bargained for...powers, and I'm going to get to the bottom of it...