I have to say, I am lowkey disappointed. I expected a bit more, and I don't quite understand why I kept skipping scenes. It was not bad, there were brilliant moments and the plot was intriguing and well written and executed. I started to find Yoo Ryung annoying and I don't know when that started. In the beginning I liked her a lot, she was cool and brave, hot tempered but sensitive. But half way through I kept skipping scenes of her crying and thinking about her sister. Maybe I just wasn't into that whole sister bond thing, I didn't felt it enough. But the reunion was indeed cute and satisfying.
The highlight of this whole show was indeed Ko Ji Seok. What a sweetheart, an amazing character and Kim Sun Ho captured him perfectly. He was literally the sweetest, and most precious boy ever. GO KIM SUN HO!
Even though many people hate on Mi Ran, I could weirdly understand her, she was frustrated and I was moved by the conversation between her and and her mom. She was an ass sometimes, but I still couldn't hate her.
But oh boy! The plot was so good! It kept changing and made the viewer wonder about the murder and victims. I liked the fact that they made the Subway ghost someone who had a "reason" to kill and not just someone with a mental illness. The role of his mother was way bigger than expected and it was heart wrenching. It was a wonderful way of unraveling the story even though I have to say towards the end there were a few minor holes.
Also, normally with crime-dramas I always wish for less romance, but this time it was the other way around. I wished for more sweet moments between the leads.
Anyway, I can say that it was not my cup of tea but I can understand why people like this.