After her friend's kidnapping, Asuka knows one thing for sure: She can't hide from the dangers of the world's magical underground. Japan's newest special operations unit is more than happy to bring her on board, and their first test isn't long in coming. In an age of magic and spirits, Earth's arms dealers jump at any opportunity to seize some arcane relics of their owneven if the asking price is human lives. It's time to send in the right magical girl for the job.