Board Thread:Naruto Discussions/@comment-24142271-20140923123755/@comment-22985334-20140923140854

Actually you did say that Fuguki fled the village. Also, no one ever mentioned how old Mangetsu is, nor is it in his article. Not only that, just because it's picky about who its owner is doesn't mean it wouldn't let someone else use it. It completely betrayed Kisame and ran off with Killer Bee. Also, just because Fuguki was the actual owner that doesn't necessarily mean he didn't let Mangetsu wield it occasionally.