This show started perfectly and it managed to stay fresh and interesting until the end. I couldn't stop thinking about it for two days until i finished it. I did took a break after every episode.

The style is a little bit quirky and even though this is an action thriller with a hint of supernatural, it also had some comical moments. I was bothered with some unnecessary scenes like for example two short nude scenes, but the biggest issue is that in the second half of the series the main character, Lee Tang paradoxically only has 5 minutes of screen time per episode since the story expanded to other characters. So the drama loses/changes it's original identity. All in all this was an exciting watch with great characters and actors who gave them life.

A great small detail in the drama is a book "Crime and Punishment" which must have inspired the creators and, after finishing this drama, i feel a desire to read the book also.