I am totally amazed at the rating of this drama. The storyline was so simple that 8-10 episodes would have sufficed. Because the writer(s) and director had to have enough material for a 20-episode drama, there were so many "fillers," side stories, that added very little value to the main story. Yes, I finished the drama … but used the FF button on the remote a lot. If you have not watched "Queen In Hyun's Man," I highly recommend you watch it. There is a lot more of the Mystery element in that drama than in Rooftop Prince … QIHM is a much better written and produced drama all around.