A vicious, deadly curse is running rampant across the world of Ashlokh, and governments across the world repeatedly abduct people from other worlds to keep the population up. For a group of nerds at an anime convention on Earth, it's their unlucky day. They suddenly find themselves in a world where they're the only humans and what's left of society is barely holding it together.

It was the year 2058 on Earth and society has barely progressed at all in decades, but the technology of Ashlokh was worse than that, and has actually regressed by several decades. Worst of all, the humans turn out to be incredibly weak compared to everyone else. With no way home and the threat of imminent death always looming over their heads, they have no choice but to begin their struggle.