I honestly have to say that Jang Ki Yong totally stole the show for me. From his first scene, I knew that he and Ji-an would have some sort of history, and indeed he turned out to be the most layered and gray character. He had one of the best development arcs I'd ever seen, and the acting was top-notch.

Don't get me wrong, I really enjoyed the development between the leads as well, but it just didn't captivate me the same way, save for a few scenes that were actually really touching.

I wish I could rate this higher but it actually took me so long to get through this drama, and even mid-way it was hard to find the motivation to keep going. I think part of this was the amount of time dedicated to the side characters — while some did grow on me, especially when they interacted with Ji-an in later episodes, for most of it I didn't care much for many of their scenes and it just very disjointed from the main storyline.