Board Thread:General Discussion/@comment-11398218-20140521105018/@comment-10452902-20150607010828

First off, if Yachiru was his Zanpact-to's spirit then he wouldn't finally be hearing it's voice because hes been hearing her voice for years. Secondly, Zanpact-to spirits do have a Zanpact-to which is themselves in their sword form which they mainly wield during interal battles with their Shinigami partner, they do NOT have a sword that looks different than they do. So if Yachiru was part of Zaraki's Zanpact-to, then she wouldn't have a manifestation similar to the captain of Squad 4's as only Shinigami have such a thing. Even during the arc when the Zanpact-to are released from the control of their Shinigami partners, they didn't have a new Zanpact-to with powers different than they had as a Zanpact-to. And just because he met her after he got the Asuchi, does not mean she is related to his Zanpact-to, it is easily a coincidence or something else entirely. All this and the fact that no Zanpact-to would have a unique spiritual pressure from their partner should be enough to debunk that theory but if not, I got more.

Coolishy mentions that she can withstand his spiritual pressure posible because shes his Zanpact-to spirit but that isn't the only explanation, she could just be a monster like he is with spiritual pressure that is unnaturally high though she leaves the majority of the fighting to others. Also, if she was the spirit of the dead Shinigami's Zanpact-to, then technically, her parents would be the Shinigami and the creator of the Asauchi so it is more likely she doesn't know who her parents are because they are dead or abandoned her. There really is no counter for most of the quotes but as a child, she would probably have been killed by someone older since she couldn't control her powers which can easily be what she meant about if it wasn't for him, she wouldn't be here today. And uh nearly all Zanpact-to wear clothing, the only exception was Renji's being a monkey with a snake for a tail but being reforged, it's hard to say if that will remain the same.