I have watched three episodes and I can say that I already like it. This drama has a good storyline that is unexpected or even has the effect of surprise, even though many Korean detective dramas are already recognized, this story is fresh and has unexpected twists and turns in every episode - it's exciting and keeps me in suspense like it.
The acting is first-class in all GG. Especially Ji Chang Wook - his transformation as an actor is impressive. The battle scenes are so real that you start to worry on a physical level about the condition of the actors. The fight scenes in the drama were perfectly staged without equipment, everything was real and raw.
I also like the interaction between Jang Wook and Ha Joon. I think that this will be revealed to a greater extent later in the plot.
I also liked the OSTs. All without exception.
Looking forward to further episodes.