In 2016, in the Austrian city of Miliopolis (formerly known as Vienna), people believe in various gods, and they fight and throw their lives away for them. One day, the religious student Touma runs into a beautiful young woman named Ageha. Shortly thereafter, they're attacked by terrorists. Then Touma learns, as she rescues him, that she's actually a human weapon, with high-tech mechanized body parts. Ageha, and others like her, fight terrorism in the chaos of Miliopolis!