It's really good, but the plot gets slow in the middle. The character development in the ghost is good. Her whole story is bitter sweet since you see the humanity of a person who won't be able to live their lives. Kinda wished Bong-soon fell in love with Sun-ae instead. Since they had more development in their relationship than the main couple. Like the reason Bong-soon fell for Sun-woo are hard as she did is because he helped her. I don't I feel like their relationship is phoney since he began to date the possessed Bong-soon not the real one. He even says that he wished she didn't tell him that it all was a lie. I mean she doesn't even have memories of when they began to fall for each other.