This drama had immense potential and unfortunately it didn't utilize all or even most of it.
The story is fundamentally great and so is the acting, especially from Kim Young Dae. But in my opinion the directing and screenwriting are where this drama is lacking, had these two things been better, this could have easily been an unforgettable experience for the viewers. Instead, now it's just an average one.
I honestly wish the review's ratings had a 《Directing》category so we could rate that as well. Had that existed, my ending score for this drama would have been different. I honestly don't want to give a lower score to any of the other categories, as they were quite good. But the directing is just not doing it here for me. I'm a bit disappointed... Maybe it's because I had way too high expectations for this (I legitimately couldn'twait to watch this. I was super excited since I learnedit was being produced). It's not bad, I simply expected way more, like something with more mysterious or dark vibes, something to blow my away like Goblin did, also something with better special effects...
I ended up skipping a lot of scenes because of my boredom or frustration.
If anyone asked me about my thoughts on this, then I'd have to say: All in all not bad, but not that good as well.