Shin has shut his heart ever since his mother died when he was young. His childhood friend Kotori has been looking after him ever since. Now that they are in the third year of high school, and it seems like they can finally move forward, another Shin from another Japan has suddenly appeared in front of them.

The story begins when the Lupinrangers, Kairi, Touma, and Umika, are kidnapped by someone mysterious. The Patrangers are then tasked with an Abduction Case to find the missing thieves, where they run into the Kyuranger team as they pass through space. Just who exactly kidnapped them? And why did the 12 Kyurangers return to space?

It is not strange that the Demon Lord's forces fear the Crimson Demons, the clan from which Megumin and Yunyun originate. Even if the Demon Lord's generals attack their village, the Crimson Demons can just easily brush them off with their supreme mastery of advanced and overpowered magic. When Yunyun receives a seemingly serious letter regarding a potential disaster coming to her hometown, she immediately informs Kazuma Satou and the rest of his party. After a series of wacky misunderstandings, it turns out to be a mere prank by her fellow demon who wants to be an author. Even so, Megumin becomes worried about her family and sets out toward the Crimson Demons' village with the gang. There, Kazuma and the others decide to sightsee the wonders of Megumin's birthplace. However, they soon come to realize that the nonsense threat they received might have been more than just a joke.

Based on the comic book by the creator of Ghost in the Shell, a young female soldier Deunan and her cyborg partner Briareos survive through the post World War 3 apocalyptic New York in search of human's future hope, the legendary city of Olympus.