User blog comment:IamJakuhoRaikoben/Chapter 479: Who you should show the greatest respect to is, review./@comment-24800928-20160330160837/@comment-26389992-20160403174838

Just reading this FTGM makes me think that the 12s know that Natsu is Zeref's brother, maybe not his face but they know that they're related.. which makes me wonder if Brandish will ever expose that to Natsu