Crimson Magic Clan members Megumin and Yunyun are at the top of their class, but they still have a lot to learn. Yunyun's begun learning advanced magic, but Megumin has gone down a different path-the path of explosion magic! Despite being warned of its limited usefulness, Megumin believes explosion magic is the way for her to become a great, voluptuous wizard, and she won't be convinced otherwise!

Megumin has arrived in Axel, and she's got a devil to defeat! Rumors abound of a powerful Arch-priest well versed in exorcism, and our resident Explosion expert intends to track her down! Meanwhile, Yunyun renews her desperate search for friends, but she's getting nowhere fast...It's the end of the beginning for these Crimson Magic adventurers as Konosuba: An Explosion on This Wonderful World comes to a fiery conclusion!

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...

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!

Kazuma Sato is a video game-loving shut-in-or at least he was, until a humiliating traffic accident brings his young life to an untimely end. But after his death, a beautiful girl claiming to be a goddess invites him to enter another world and gain some respectable perks in the process. But Kazuma's choice is going to have serious consequences for the goddess and the dead man alike...

Death doesn't stop a video game-loving shut-in from going on adventures and fighting monsters!

The ultimate magic... explosion! Pushing aside her hometown's teachings, Megumin, the genius mage of Crimson Magic Village, sets her sights on the raw destructive power of explosion magic. But when she arrives home with Yunyun to find Komekko, her little sister, surrounded by monsters, she's faced with a tough choice. Will she give up on explosion magic and spend her precious skill points on advanced magic in order to save her sister? And what has that strange cat got to do with all this?