The first episode was one of the best I have seen. It grabbed me right away. I was all set for a romance between the writer of the letters and Seo. Then I watched the series go down the drain. The story looked as it would it revolve around the letters and the actual author of the letters. Instead, they have some emotional coding genius steal her away with lies and manipulation. Very frustrating watching all those episodes with the girl falling in love with a despicable man. I found no joy in this. I have watched countless K dramas and this ranks as my most despised one.