Everyone assumes that magic and technology are incompatible. But what if those very mythical races—fantasy and fairy-tale peoples—managed to unite magic and technology and could go out into space? And it would happen in a world with no humans. Because most often it’s humans who are the very factor that leads such civilizations to collapse. And right at this moment, a human will invade this world. One who ends up there completely by accident, not by their own will. What will it be like for them to survive in a world where they are only an outsider—a lone one? That is what they will have to find out.