I really loved this drama a lot! some episodes were less good than others but I think Lee Yeon and Yu Ri rlly made this drama good. There was a lot of suspense with those fishers and the other weird creatures like the imugi and darkness spirit and the nightmare bringer.
Lee Yeon is rlly funny, handsome, cute, strong, and capable. He was also rlly protective of Ji A (seeing as he LITERALLY went thru hell and back to protect her) and even a lil obsessive seeing as he waited 600 years for her and never let go or forgot her... AND his smile is soo cute!!
The FL Ji A is quite different from ur usual FL. She was strong and smart. She had clever tricks and was rlly observant. She wasn't really a damsel in distress for most of the drama and was always ready
(1. Always records things 2. Remembers a lot of things from when she was small like things her parents once said etc 3. She discharged herself to a psychiatric hospital when she was 9 by blackmailing her doctor LMAO WHO DOES THAT and 4 she didn't drink the tea -that could've been poisoned-, almost perfect!)

Their RELATIONSHIP WAS SO CUTE!!!!!! she called him her puppy and they hugged a lot and the ice cream scenes were so funny...
In general, I think the first half of the drama was more entertaining but I rlly liked the last episode and the last scene was really unexpected and a plot twist.
Yu Ri was really beautiful and an amazing friend to Lee Rang. And how she was w her new family was rlly cute
The highlight of this drama must have been the bromance between Yeon and Rang. The subplots were interesting as hell but the reunion with the parents was a bit disappointing in my opinion.. They hyped it up so much in the episodes before the reunion and then they just stood there -_-

I gave it a 9.5 and not a 10 bc even tho it was rlly cute, original, and suspenseful, it was quite slow and sometimes a bit boring.. Also, I don't think they chose who played the villain well...he didn't look scary or threatening at all and that kinda ruined it a little bit.