User blog comment:Stone Roger/Natsu and Zeref have somekind of relation?/@comment-121.218.116.211-20140207085907/@comment-24.253.231.99-20140331151057

But that is a good point and makes sense why he couldnt leave the guild hall during the,battle of fairy tail but still,doesnt explain gajeel. I think they are all the dragons them selves.