I avoided this drama for such a long time. The poster didn't look appealing, the cast not interesting enough.  But now I've finally finished this gem within 2 to 3 days. There were so many things I loved about this drama, and it certainly made me put everything else aside. I rushed through the story like I haven't done for a very long time because I fell down a very deep rabbit hole. And despite my sudden addiction to this, I had a hard time rating it.

The drama has a very good, fast pace throughout the whole  story. There was a well woven net of deception and order of events that led to a well carried (but also kinda calm) finale, even though I still  felt like being in the middle of the story at the beginning of the final episode. I could have watched so much more. Seriously.

Characters (played by a high level cast) were so well written, so multifaceted, so likable - some more, some less. There  were bad guys who were bad and clever, good guys were good and clever,  the police was actually police and seemed to get its job done properly while the power-division/struggle was evenly shared and well balanced. There was always the right amount of give and take and there was no one who would always have the upper hand.

Action scenes were also very well choreographed without looking excessive, but still emanating some coolness. The best thing about that part: Even though there were many fights with one guy versus many gangsters... They never made them look like superhumans with endless physical strength and stamina. Regarding the environment they grew up, they were of course well trained. But that never meant that they were able to take on a bunch of ruthless thugs and get away unscathed. They either got beaten pretty badly or were able to run away in the end. And that is way more realistic than everything else you so often see in other dramas.

Romance was... intense and hot but sometimes also on  the short side. I mean I'm a fan of dramas where romantic scenes appear  rather rarely. Because when they do happen they feel so much deeper.  And I just wished that those rare scenes in this story would have been  extended a little bit. Though I can't blame the writers either because  there was so much to tell in this story since there were so many great  characters, that it must have been difficult to pack everything in 20  episodes.

Jung Kyung Ho was fantastic in almost every aspect...  Yes, you heard right. "Almost." :P And this is probably only a personal  matter of taste. I'm not really a fan of those high pitched sounds when someone is crying. I mean... don't get me wrong, it totally fitted the  moment and showed an increased level of emotion necessary for that  scene, and it was definitely done splendidly by him. And maybe I'm only complaining about this tiny little thing, because I was looking for perfection after all that praise, but it still got me a little distracted. Though I wouldn't let this small matter affect my rating.

It was a great and very entertaining, moving  and captivating drama nonetheless, and it by all means deserves all the  praise it's getting.