In the TV series Tomorrow, the Director is in charge of Jumadeung (basically the afterlife run as a corporation). On the one hand, Choi Jun-woong (and I think at least one other person) calls her the Jade Emperor, and she does not really deny it. On the other hand, everyone else in the Jumadeung hierarchy appears to be some type of human soul who chose not to be reincarnated and to work there instead, and people at least seem to talk about the possibility that the Director could step down.
So is the Director actually the Jade Emperor? Was she originally a human? If so, was she anyone of note?