A war between those above and those who had fallen. Angels had become regular source of suffering for the general human population, especially as these beings were attached to the earth itself and controlled the forces of nature. After yet another Angelic battle resulted in the loss of human life and property, the UN decided to send a mediator to the next battle in an attempt to reduce casualties. This unit, the eighth synthetic human sent into such a situation, begins to unravel the reasons for the war, as well as uncovering her own past.