User blog comment:B214/High School DxD EX/@comment-201.239.133.207-20170104020556/@comment-30924344-20170209192717

@Tengen Not dragon-like because a part of Great Red's soul is in Issei. The soul is what makes the body "alive" and physiology could not exist without it. So when a character makes a vessel from their own flesh for another characters soul, their soul gets mixed in because a soul is in every part of the body because like I said, the soul is what makes us exist. That makes Issei a demi dragon-devil.