Talk:Ruka Souen/@comment-67.81.30.203-20120417191257/@comment-65.175.254.152-20120521235520

They're second cousins which means they're not related by blood. Also don't forget about the habit the Purebloods have of marrying their siblings. And anyway in ancient countries and even up to the middle ages it was acceptable to marry someone who was distantly related to you in order to keep wealth in the family. The vampires in here do the same thing, except it's to keep their blood pure.