The first 5 episodes honestly made me rethink starting the drama and then dropping it because it fell terribly flat, be it the characters or the pacing. The show really starts showing some actual substance after episode 6. Still the plot and character building was rushed, character development felt sloppy and there were some glaring plot holes that cannot be overlooked as anything but plot armor.
The drama in my opinion failed when it tried to do a lot of things at the same time but not hitting the right balance. The atrocities and crimes committed by the Japanese occupation subsequently got overshadowed by the supernatural aspect of the drama. Half the time I wasn't sure how to feel because you have some very dark material that horrifies you and then you see a 10-11 ft monster just rumbling about. You aren't sure whether to be curious and thrilled about what the monster can do when you have a man being tortured still fresh in your mind.
Now, the last 4 episodes kinda brought them together in a good cohesion and an overarching theme to bind them but in a 10 episode length drama thats quite late. Han so hee was amazing throughout, especially her action scenes and crying scenes gave me goosebumps.Park SEO Joon's Jang tae sang character development was finicky but it made him act more like a main character rather than a showpiece so..i guess it's okay. The ending felt like a leeway to season 2 and less like a proper ending to me. Loved the opening theme song extremely haunting and appropriate for a drama like this. Production, cinematography, cgi were pretty good. Overall not bad but not great.