Masami Hisakawa settled long ago into the calm life of a carpenter, hanging up her sword in favor of a saw and chisel.

But when a herald of the demonic armies of old appears near her home, Masami realizes peace is no longer an option. And when several townsfolk go missing, Masami is forced to take up her sword once more.

Now, it's up to Masami to find the source of the demons and cut it off, once and for all. But there are some monsters on the road a human can't kill...