Acer Illimini. The City of the Guardians. Here lies the angels that protect the Earth, but they are rapidly dying. The hope of the humans is fading. There is only one full-powered angel left, will this one angel find the half-angel daughter of the Guardian Leader? She stumbles around on Earth, finding out about her half-blood relations. Why doesn't she fly to the floating city? Well, the downside of being a Half-Angel is being born without wings.