Never been so frustrated watching a kdrama until this one. I'm midway through episode 12 and while episode 12 would be at the peak of most 16-episode dramas, I am still clueless as to where this drama is all about or where it is heading.

Other than the meet-cute and development of their relationship, which by the way is still a question midway through episode 12, I have no idea where everything else is going. It is still half baked and no development in any of the storyline:

(Spoiler alert)
- the father now dead, and then what? Doesn't seem to contribute anything to the plot
- at episode 12 the male lead still a mystery as to who he is, and how his transplanted heart is connected to the female lead or the development to the story
- and the second lead. Fine that he is a mystery with the now dead twin brother but we are already at episode 12 and I still have utterly no clue as to who he is and what his deal is
- the cafe friend met her ex-bf, and then?
- the police group is like they are there but not there, is likebthey are important because of suicide, murder and all but not important because they are being put together like a side dish
- the past with the church and all is still an absolute unknown. Not even a slight clue on how it is probably connected
- then there's the villain, the guy who is leaving music boxes and paper flowers but who in the world is he? Absolutely no idea.
- then the vice chairwoman. Who is she? Maybe I missed something but no idea.
- then the lawyer thugs. Who are they and why are they there? No idea.
- and the worst is in 2 scenes, the friends began imagining and playacting scenarios about their relationships, which is so silly amidst all the suicide and murders. So what does the show want to be?

Murders + detectives + is it a suicide or is it not a suicide + silly scenario playacting + family feud long forgotten but not + some romcom moments. I seriously don't know what the show is trying to be and where it wants to go.
Sorry for ranting. With such promising first 3 to 4 episodes to come to this. It's just so frustrating and a total waste of my time.