I was very skeptical at first of this drama. Having big name actors typically means that they forsake the actual acting to have popular actors in it. Despite this, this drama has become my favorite drama I have ever watched! IU had fantastic chemistry with all of the actors, whether that was platonic or romantic! Lee Junki and Kang Haneul did especially amazing portrayals of their characters. Kang Haneul had me actually scared at some points in the drama and Lee Junki managed to convey every emotion perfectly. The acting in this drama was amazing, the best I've seen. They could not have picked better people for the parts! Rookie actors Jisoo, Nam Joohyuk, and Baekhyun all did really well too, despite being new and never having done a historical drama before! I really enjoyed watching their characters and can't wait to see them in more things! The OST's were so beautiful, AKMU and Davichi have such lovely voices and I've been listening to EXO-CBX's "For You" since it came out! Overall, this drama is well worth the watch and I can promise a rollarcoaster of emotions. Praying for a Season 2!