Board Thread:Theories and Speculation/@comment-3523655-20180918083440/@comment-1512913-20180918085453

Just my 2 cents. The fact that Orochimaru himself was aware of and looking for Totsuka Blade, should be significant. If I were to guess, the Totsuka Blade might have origins within Ryuchi Cave. Perhaps any sword originating from the snakes is 'a' Sword of Kusanagi, hence why Orochimaru's and Sasuke's and Itachi's all are Kusanagi Swords, makes sense?