This necklace has been handed down from the angels themselves to humans. As angels are peaceful creatures, they cannot fight in a war, otherwise they become the things they hate, the demons that attack them. Thus, they chose humans pure of blood to fight against the demons and they created this necklace that gives humans wings so they can fight on equal terms with the demons. The angels nicknamed these people the angelites. However, if there is someone that is not pure of blood, the necklace will reject the person and throw them iinto the pits of hell. har, har!