Board Thread:Wiki Discussions/@comment-24993716-20140705195718/@comment-1512913-20140705203706

Kamui works by transporting the user or only parts of his/her body to the other dimension. In same way it works on others. On another hand, Kaguya's portals are all connected, meaning her pushing a fist through one makes it go out from another, that means there's no "other dimension" between the portals for her. Her version basically just creates "windows" or "doors" in space.