Naoyuki Asaba is a typical high‑schooler. While serving in the school press club, he spent the summer pitching tents near the nearby army installation, hoping to catch sight of the UFOs rumored to be hidden there. Back at school he encounters a peculiar girl, Kana Iriya, and slowly learns that she is not simply odd—there's a sinister truth lurking beneath his familiar world, a secret that threatens everything he thought was normal.