What can I say about this drama? it seemed interesting at first and you continue to watch it because you hope that maybe it'll get better but in reality you're wasting hours of your life watching this total nonsense.
It was like the writers forced the story and the charachters to act as stupid as possible, in particular An Soo Young and the most infuriating thing is when they ask her why she did all of that, she answer with total nonsense phrases and no one asked wtf that meant...

In this drama the only unchanging character is An Soo Young. I tried to understand her but for me the writing really lacked to makes us understand her reals means and her true fears.

For it was like hoping for something that it never happen in this drama, it was very dragghy, boring and too pessimistic for no real reason, because true problems are a real different thing.
I don't suggest you watching this drama, you'll only be disappointed!