Konosuba: God's Blessing on This Wonderful World!

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.

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!

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!

Still sitting pretty on the reward money from defeating several of the Demon King's generals, Kazuma is taking it easy. Darkness, on the other hand, is nowhere to be found. Just as rumors about Darkness leaving to marry a lord begin to circulate, a letter turns up.

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.

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!