the worlds that are merged in this story

Supernatural

DXD

Type Moon

The Originals

The demons, angels, Grigori, Deities and some other Supernatural monsters that awaken your Magic Circuits become DXD equivalents

The archangels and death of the supernatural do not exist in this story and will be replaced by those of DXD

God and Darkness of supernatural don't exist in this world

witches, vampires, werewolves, humans from The Originals upon awakening their magic circuits become the equivalent of Type Moon

Dragons are the same as DXD