Board Thread:General Discussion/@comment-10587310-20130620070434/@comment-1923560-20140110013044

Well, I'm not really understanding myself why Renji's Zanpakutou changed after been reforged. Well, we've seen already that he was using Zabimaru in its released state, and now he has this second blade.

I'm not sure now. We saw in a filler arc that Renji's Zanpakutou was two souls, one consisting of Baboon (or was it monkey?) and Snake. If the second blade is a manifestation of the second soul, why did it decide to show up now?