Ever heard of a Guardian Angel? Well, Catholics and Christians do. This is a story of a legendary being, Anvil. It is a half Angel half Devil and has never been born for 300 years and are the targets of all Angels and Devils as Anvils can blend in their habitats. Acer Ange, one of the Angels of the High Order who are the strongest and trustworthy, has been hiding that an Anvil is Born. The only reason why is that she thought The Anvil could help The High Order to get data and weakness so that they Could restore peace to Heaven. Kimikasa Acacia, the Anvil, is neither on the Angels or the Devils side.