I'm watching this because of actor Choi Woo Sik.

there is unexpected r-rated scene on the first episode , maybe because the writer want to express how emotionless the characer was . anyway its not family friendly so skip that scenes if you want to watch in living room ! hahaha

the storyline was not that bad but not too good .
far from my expectations .
i thought it going to be more thriller and unexpected twist . like vigilante since both of them became a dark hero that punishing people for their crimes .

Honestly Lee Tang never want to be a dark hero but he was stuck in situations that he never think he would encounter it , poor that man .
After Lee Tang killing people i thought he going to be crazy since he often got imagination of people that he murder but he endures it , till he looks like a living human with losing soul.

i'm never thought that murdering people also need luck to survive , Lee Tang was really lucky somehow maybe he save a world once in his past lives . the guy that saves lee tang had a cool characters actually , he got a good intentions and made lee tang unexpected hero . poor that guy because he die in the end .
i was hoping Lee Tang can have a good life with a proper job .

Anyway its a good story to killing times .