There were comments that this drama is worst, and that the male lead is very stiff and has no expression, or the female lead is annoying, the story is dragging and long, boring, etc. But honestly, i find this drama more than perfect, its daebakk!! I can't possibly count how many times i cried especially with the male lead, how many times i laughed, and how many times i got hurt whenever bad things happen, or how many times i felt butterflies in my stomach for every love scenes..This drama was really perfect. I've actually watched more than 3 times already and i bet when i got bored, i'll be watching it again sometime.. The plot and the story for me was very interesting. I can't help but be on my toes whenever its the end of every episode, it made me crave for more and look forward for what may happen next. The actors and actresses, for both the main leads and the supporting characters, were awesome. They played the role well and i really feel what they feel. I don't really know the cast of this drama at all at first until i happened to accidentally crossed way to this drama currently airing at that time, and since i was bored i gave it a try, and it never disappoints me. The male lead was promising for me, i literally cried with him. His character was the saddest yet strongest character ever in kdrama land. Now i became his fan because of this drama. Lee Dong Wook is a best actor! Even the villain is a best actor. The mother was also daebak! She's just an amazing actress for me. Hands down to the actress Kim Hae Sook! And i also like the female lead. Overall, the cast , the plot, the music..all were amazing. I basically will recommend it to anybody! It's a must watch!