I was like: hmm, is the main actress from the Hwayugi ? checked her profile: yes! I'm right! but wait? was she a zombie??... Oha! I was sure she played female lead there)
I have watched 4 episodes and in generally like it so far. But I would add romance, I think it would make the story more interesting. I'm not a fan of "do not show it to me if there is no romance", but here it would be beneficial.
the theory that ML is the protagonist and his ghost is the antagonist is also don't match, because ML's ghost appeared (come into the world) right AFTER the death of Sergeant Kim, no? it means someone else killed Sergeant Kim..
checked her profile: yes! I'm right!
but wait? was she a zombie??... Oha! I was sure she played female lead there)
I don't mind s2, but okay if it'll never happen
but still recommend to give a try for those who has not watched yet
2-4th episodes - supernatural horror
5-6th - slice of life & secret love
... what's next? :-D
it is the biggest cliche in such drama... which is very upsetting
I also normally do not watch sad ending stories, but this one is different
but I see your point