It's all been said already, this show is a masterpiece. Yes it has IU in a standard sad-girl trope but never is it done with this level of grit. Nor does the sad girl suddenly turn into a vanilla princess completely helpless without a man to save her. She stays true to character throughout, finally! Sound track is great, especially the Sondia tracks. Dark, moody, violent at times, sad for sure, but played beautifully by both leads as well as the supporting cast. Credit to the writers/production for staying true to a vision from beginning to end.