A long time ago earth demons were sent by Lucifer to take control of earth. God sent his 5 greatest warriors called the survivors, to protect earth. A great battle took place leaving the angels victorious.
Although some demons got away and went underground, eventually the warriors found 'love' (well the angels did). The survivors gave their first daughter their ring and told them their little secret. After that the rings were passed down through the family. The secret was forgotten, but was it lost?