[Ukitake looked up, pausing in his work for a moment.]

I don't know. I've never come across another Shinigami that wasn't from my world. However, if you study beliefs and other culture's afterlife theories, a big similarity is that of the afterlife being a place for peace, or rebirth, in some instances.

I may not have seen other Shinigami, but I wouldn't rule out the possibility completely.