User blog comment:B214/High School DxD EX/@comment-128.177.161.144-20150823004621/@comment-108.224.166.119-20150826201947

Those too of course will be a major factor would be surprised if issei's kids by ravel are a little like natsu dragneel from Fairy Tail and Issei's kids by rossweisse will probably be masters of dragon magic as well as other forms of magic