I watched a ton of Asian dramas but none of them has ever had me hooked like this show. It made me watch till the end without skipping any scene, even replaying when I missed a subtitle. It was agonizing waiting in between episodes so I also rewatched prior episodes on the days where no episodes are being aired.
In summary- top notch acting from all cast members who all have contributed to the story; great direction, very polished cinematography - splendid camera work and editing overall - and a solid, interesting story nicely wrapped up in the end. 10/10