Juist finished Just Between Lovers, it was phenominal with a really cool OST.  Two Weeks is worth checking out just for the child actress. I would watch and rewatch her scenes with the male lead [lee joon ki]. The OST was neat, check out this song from Nell. https://www.youtube.com/watch?v=389K7l2KK0Q

Just Between Lovers - first

Pinocchio - second

Cain & Abel - third

Rest...Skip! Just kidding, there are many other good ones on that list!!

Pinocchio because it's the only one of those that I've seen.. :D

I'd say Just Between Lovers. The female lead can be awkward, but the male lead's acting is fantastic.

Pinocchio or Nirvana in Fire. 

I've only seen like 13 eps but six flying dragons