I binged it so fast. But I have a lot of things to say. Let's start with the negatives.

So many things were changed from the original webtoon. I loved the webtoon. Eventhough i like the show as well I do wish the kept the story. The main premise is the Dam and it starts the same, but the further it went the less it resembled the webtoon.
They took a very different approach to JJ's story and I don't know how I feel about it. [spoiler] While in the webtoon he did worse things and definitely didn't deserve a redemption, here he was just angry and didn't really do anything THAT awful. With the story they created for him in the show I did understand where he was coming from and why everybody forgave him. I'm not sure if I like that kind of ending for him or not. [/spoiler]
Another thing, I think the storyline about Who-Joon's father was unnecessary. Maybe they were trying to make the series longer, idk. I don't think it added anything to the overall story.
This may be only me, but [spoiler] I really loved when in the webtoon Joon came to Geunyoung crying. I think it was a very important moment of their relationship. I was sad that they decided to not put that scene in. I was waiting for it. [/spoiler]
Also, I don't know if they picked the right actor for Joon. At first I really felt like he didn't look like a global star. Later on I got used to it but I still don't think he looks like a superstar.
[spoiler] I also feel like Joon's real identity wasn't a bit deal to Geunyoung. Sure wasn't mad at him for lying, she wasn't surprised that he's not who he said he is. I wanted to hear Geynyoung call him by his real Korean name, but they just said that his rap name is Benny, which, yeah that's his English name but he also had a Korean name, which is Who-Joon. I also wanted to hear what she calls him. Because he calls her Geunyoung-ah which suggests that they are close, but when they talk they use formal speech. I wanted to know if she calls him Who-Joon shi or oppa, but she didn't call him anything she didn't address him in the last couple of episodes. That really confused me. [/spoiler]


Now for the good things.

Despite all the negative things I just said, I did like this show. I think the cast did I great job. I really like the actress that played Geunyoung. She did a great job, she had great facial expressions. I also like Kim Mingue. I've seen him in another dramabefore this And I think he's really good. What really surprised me is Hwang Chansung. I saw another drama that he's in and I really didn't like his character. After that whenever I saw him online I always thought of that character, I thought he'd always have that image in my head. After i watched this I am amazed. He was AMAZING. I forgot the character he had played before. The are so totally different character, but he played both of them so well. Now i want to watch more of his work.
I also think the chemistry between the main cast was amazing. It felt natural and real. I also think the way the main couple supported eachother was amazing. They fixing push or rush, they tried to unstated eachother. I really enjoyed that.


Overall i enjoyed the show and i do suggest you watch it. Although you don't need to read the webtoon before watching because they are 2 different stories. Similar, but not the same.