I decided to watch this drama because I am hooked on time travel, plus it has gotten so many good reviews. I was not disappointed! The story was compelling and the characters were well developed and played convincingly by the actors. There were some parts where it was a little slow, but I still kept on watching--I HAD to know what happened! Just a warning: you may need tissues, like me, because I shed some tears; it's very heartwarming. Also, I managed to finish this in two days, despite it not being the weekend...I had a couple of sleepy work days!