Have you ever wondered what happens after peace is restored in a fantasy world? What happens beyond the final page of an Isekai light novel? Eiji, a thirty-year-old Japanese city clerk with a thoroughly average life and a fiancée, had not. He too answers a call to be transported to a fantasy world, but not as a hero. This fantasy world, having already been saved by a hero, was about to collapse for another reason entirely... thanks to that hero, who was also summoned from Japan. Eiji is tasked with restoring the fantasy world to its authentic form: how it was before it was infected with the technology, ideology, and societal concepts of modern-day Japan.

After running wild to save the people of a fantasy world from an anachronistic beriberi epidemic, Eiji and his dragon companion Tiamat discovered the root cause of the world’s deterioration. Accompanied by Baze the Fenrir and Hieronymus the Cait Sith, they now embark on a new journey. Tagging along with the Murdock Troup, a traveling circus, they arrive at the kingdom of Noura, where Eiji and his party will face down an entirely new challenge.

The pinnacle of human civilization has come and gone, leaving only ruins in its wake. Society and science now struggle to rebuild, rediscovering scraps of knowledge from powerful ancient artifacts that defy comprehension. These relics of the “Old World” can make the fortunes of those who find them—if ancient security systems and rogue bioweapons don’t kill the relic hunters first. Akira, a young street orphan, sets out to become one such hunter to escape his brutal life in the slums. Untrained, malnourished, and poorly armed, Akira would be lucky to make it back from the ruins alive—until an encounter with Alpha, a mysterious, ghostly woman, changes his fate forever. Alpha needs a hunter, and she’s willing to train Akira to get one. Will her support be enough to help a penniless kid from the slums climb to the top of a crushing and merciless world?