It is phenomenal, the casting, the storyline, the music, the cinematography and all. There is no overdo of any emotion, the love, pain, anger and disappointment of being insulted, betrayed and all are at the point, and I am totally impressed.
I want to specifically mention the 2 scenes that i like the most. One is when Koh Hanshu (Lee Minho) was attending a social function with his father-in-law who calmed him and supported him, the eye contact and touch is beautiful. And another scene is the meeting of Sunja and Hansu in Hansu's office. I held my breath till Sunja walked away and I teared when I saw Hansu's pain and anger in Lee Minho's eyes.