Why did i spend so much of my time on this...?

I must say that the storyline of this drama is pretty crappy, with repeating scenes/plots. I did complete it because I was too curious about what would happen next. The actors saved the shit writing and the score I gave. I still feel like it was a great waste of my time, with that said please refrain from watching this mess. There are a lot better dramas. It could've ended in half the time, all 52 eps are extremely unnecessary... simply watch the first 16 and the last 5 and you're good. That's it.