The message this film has seems really important - I don't know much about how real that issue is hence "seems" -, but it is delivered in a boring film. Such a shame. Edit: the film is divided in two parts, the second one is much better than the first one, but you need the first part to have the second part, however with better writing, those two could have been well done together, but they weren't so that makes the film boring.
Didn't like this part 2, it felt like the show dragged. It could have been condensed in one season of 12 episodes, at most. I really liked Im Ji Yeon's acting though.
The number of native Koreans that are either Jews or Muslims in SK is basically null, Christianity on the other hand gathers the most religious people there. Besides, the whole point of the scene was using the religious rites that made the scene possible, Buddhism doesn't have a similar structure as Christianity. Stop malding over a dramatisation, it isn't even real.
Edit: the film is divided in two parts, the second one is much better than the first one, but you need the first part to have the second part, however with better writing, those two could have been well done together, but they weren't so that makes the film boring.