Board Thread:Wiki Discussions/@comment-24925932-20140510165758/@comment-24925932-20140511101721

Another factor for this speculation is that Gold and Silver Brothers are originally based on "Journey to the West" book. The Hyuga clan also has more traditional Chinese appearance and fighting style (Juken). But so far all the members have the Byakugan and the brothers don't. Hagoromo's brother and the 2 brothers have horns like Kaguya and similar hairstyle.