I almost dropped this.   Couldn't latch on in the beginning but thank goodness I persevered.  Twists and turns at every corner, acting was brilliant - Jisung in top form as always, and Park Jin Young.. young man.. when you were sobbing at the loss of Soo Yun.. I sobbed too.. and it was like.. every scene you cried, I cried along with you.. your face was full of so much desolation and loss.. I felt it sooo deeply.  

Has to be up there as one of my all-time fav dramas.  I applauded as the credits rolled at the end of the final episode.  Brilliant brilliant drama.  Well done!