The Holy War is the war to collect all of God's Inheritances, participated in by Angels, Demons/Vampires, Humans, Half  Breads, and Fallen Angels alike.  Supposedly, once one person obtains all of God's Inheritances, they'll will become the new God.....however, no further information on the Holy War has been noted as of yet.   In this currently Holy War, the God Canidates attempting to collect God's Inheritances are the Fallen Angel Satsuki, the Angel Tsuzuki, and the Human Izumi, along with the Half Bread Tsukimiya, the Half Bread Hinata, and the Half Bread Nao attempting to collect certain ones for their own purposes.