Quote Originally Posted by Morph Bark View Post
That would sound logical if it weren't for the fact that Yachiru has a zanpakuto of her own.

Unless it's an ordinary sword that is claimed to be one, but presumably there are ways to know if a sword is a zanpakuto or not.
In this theory it's just a basic sword, but her being a zanpakto screws up their scanning.

Also, maybe SHE found HIM. He sensed his power, and left to find him, because I think the swords choose their wielder, right?