I only stopped at episode 10 after I binged watched it in one go and after I slept it off, I am thinking of picking another kdrama.
It's a shame really how it started good despite some issues. It has potential but I knew already from the first episode that this will be a letdown in the end. The directorial seems very good with action scenes but was hasty, ill-paced and shifty with the other scenes. There are scenes that left me confused if my app was bugging as the next scenes and pictures are just introduced so suddenly and sometimes I just felt that they should prolonged some scenes and shorten some. It really felt like it had a newbie director.
For a serious tv series, it sometimes pull some excessive scenes to build up the plot which was sad because the plot only has one main plot and it's disappointing as there could still be areas that the story can grow and with more plots to developed.

The reason I watched this one despite its lack of hype after it finished airing all the episodes was because of the two main leads which I am both a fan of. They are really the reason why I had stayed for ten episodes and after the revelation and resolution of MLs past , I just don;t have a reason to continue anymore. Firstly, I think the script and direction has made their character hard to portray justifyingly. They are both good actors but they are given a stale characters. Hwang Min Hyun's character was mostly wearing a mask all through out episode 8, couple with his messy hair, it's really hard to like him as I can see him just a random person without seeing his face and it's hard to see his emotions and feel for him. Kim Soo Hyun's character was boring, it was given some back stories but it felt shallow.

The plot also were only focused on MLs past and they were milking it all throughout. That reall made me disappointed how the writers ability was just that much and the director can't even suggest to elevate the story and made the plot more than just a single plot that can be resolve in a few episodes without putting so much filler scenes in between just to add screen time and to finish the whole 16 episodes.

I really miss Legend o the Blue Sea and Goblin's plot progression as I hardly find it in Kdramas nowadays, they made so much potential and they exceeded what was expected by creating so many plots, and interesting one too, all through out the end.