I have always been a film person and would see like a dozen on an average weekend. Always paying attention to the cast, cinematography, screenplay, film editing and direction. Some years ago I was introduced to the South-Korean series. At the beginning I had some difficulty of dealing with that whole new dynamic. Once I understood how it worked I became a huge fan of K-dramas and spend most of my free time watching them. The characters here are so real and intense that young people may not understand what is happening. The cast wonderfully chosen show remarkable performances. A conclusion totally unexpected and the impassivity of the female lead character puts this drama on a upper level. I laughed, I cried and I shivered. Certainly, a must-watch drama.