Untouchable is the first Action drama that I've watched under JTBC. All the actors and actress are great but I don't like it that much. The coloring(?) of this drama too is not suitable for action in my opinion. The color of this drama that gives me is light like a pastel (which I always notice when watching JTBC's drama) and not heavy that's why I can't take it seriously for a mystery thriller drama.

The acting is good too but some part of it confuse me, example is Yoo Nana's feelings. Does she likes Jang Ki-Seo? But she said she wants to be free and she didn't want to see him anymore, yet she ask if Jang ki-seo have time for her to celebrate her birthday with him. Dis she develop Stockholm syndrome? that part confuses me.

Overall I'll give this drama a 4/10. Other than the actors and actress, there's no reason to watch this. I didn't even heard an OST. Not recommendable.