Toteku

That too with the same actress. So min did This is my first time with the same trope.

If anyone want to know the movie, Je Ha and Da Eum's father were watching together was The Green Ray by Éric Rohmer. It's a nice movie; I recommend.

They will never stop milking the same trope again and again.

It seems So Ji-sub has taken it upon himself to do justice to Badass Manhwa characters; not that I am complaining, on the contrary, he suits them the best.

Same. Let's see how Lee Soo Hyuk shines in a leading role.

Oh, you can read the manga; it has been completely scanned and translated. I don't know if you will like it or not as tastes vary, but it is somewhat above average I would suggest.
And for the webtoon of S-Line, I wanted to read it (I went through the webtoon of Plaza Wars as soon as I was done with Mercy for None, and it was brilliant) but I couldn't find a translated digital version anywhere; so I had to do with a wiki page for the summary of the story. I couldn't to spoil myself so didn't delve deep, but the premise seemed interesting.
From the Trailer, it seemed there will be a lot of extracurricular relationship activities in the drama, so the spice levels, I believe, would be up.
I am pretty sure there would be a few characters whose lines would just make a U-turn and come right back to their heads, signifying… I wish not to get banned but couldn't help making this joke….

But in “legal”, where's the “drama”?

When I first saw the name “S-Line” and the genre saying it's mystery, I thought it would be a Korean version of a Japanese Manga “Suicide Line”. Then I read the summary and realised, this is way more creative than the Manga.

The “S” is not for Sex but Scandal.

I guess what you are saying is true, as viewers can be quite obsessive over authenticity (Someone even accused the casting, as the actors are much older than depicted in the drama). K-dramas often set high standards for us. Let's see if by the end we get any conclusive evidence or a diagnosis. Anyway, the rest of the drama is turning out well, and I am all for that.

Has anybody wondered what disease she could be having? I just cannot find any disease information regarding her condition, and it's bugging me. They could have mentioned it for, in Lee Jeha's words, “Realism”. I am pretty sure Jeha would have hated this lack of authenticity in the drama. I hope his film gives us a proper diagnosis, otherwise I would be really disappointed; watching two stories simultaneously, one drama and one film, and still not getting one crucial piece of info is frustrating!

I think because of his age and the slower movements he mentioned, we get to see how Gi-Jun also has aged while staying away from the underworld. The casting was perfect. I don't think anybody could have pulled it off other than So Ji-sub; he just has that cold, calm expression one would expect from a total badass like Nam Gi-jun as I read the Webtoon.
They did change the story, but within 7 episodes they managed to sum up most of the important parts while giving us top-notch action.
Lee Jun-Hyuk did an awesome job, he just cannot be put as a guest role. He was there from the very first to the very last moment of the drama.
Mercy for None is basically Asian John Wick without guns, and I am all for it.