In 2028 a great evil is secretly encroaching on the world of humans — a demonic force known as Lucifer Hawk. Standing in its way is a small, secret group of female police officers: Tokyo's Attacked Mystification Police (AMP). Gifted with supernatural abilities, they try to defeat the forces of darkness wherever they appear — this time, in a massive new skyscraper under construction. But for one member of the AMP, Katsumi Liqueur, this particular battle is personal. As she flashes back to 2024 and her introduction to the world of the supernatural, it becomes clear why the mission is more than a job to her.