Board Thread:Episode Discussions/@comment-1181222-20171011112920/@comment-1181222-20171011114756

I have a feeling it's because the Seven Swordsmen of the Mist, pretty much all the times we've heard about them, have been incredibly powerful and more often than not incredibly rebellious because of it. It seems that no Mizukage has ever really successfully controlled the Seven Swordsmen, so it sounds like Chojuro's solution was to keep their incredibly powerful artifacts sealed and let a group call themselves the Seven Swordsmen in name only.