This drama is heavy stuff. It is filled with philosophical and ideological musings on religious and pseudo-religious topics which can be difficult material for the viewer. It certainly was for me. I don't mind dramas where you have to think, but I don't like dramas where I feel like I'm in a philosophy lecture where a not very bright professor keeps asking questions without giving any possible answers.
The idea was ok and I was curious how the creators would solve their problems. Although there wasn't a clear main character that I could sympathize with, the main question posed in this drama made me curious enough to stick with it. Unfortunately, the answer given by the creators raised more questions for me and just when it started to get interesting, the drama ended. I waited in vain for the next episode. It left me disappointed and frustrated, and I expect a slightly different outcome from a drama.