I'll be honest in the review. I was not completely impressed with this drama. I felt the story and setting was heavily inspired from Master's Sun, a previous drama of the Hong Sisters and Goblin which was like a cultural reset with many dramas trying to copy it's fantasy world. Because I have already seen those two dramas, I felt deprived of an original story while watching this drama. The hotel and ghost concept was in Master's Sun while the theme for Supernatural protagonist with a curse from deity to be resolved by a human was from Goblin. There were other world building themes as well that I thought reminded me of Goblin. Because of these things, it felt a little dated.

The Good thing though is that it did manage to find a cohesive theme within the show without having to drag out any narrative. The different ghost stories though not as good as the ones in Master's Sun, did progressed story and character development. And the whole theme of resolution of one's grudge using Time and Existence as a background was good addition too.

The biggest problem the the whole drama why I couldn't back it up was the lack of chemistry between the two main leads. Ko Chang Soo as a character was the literal definition of Gary Stue(Guy Many Sue) and a Manic Pixie Dream Guy. It was even more apparent because IU and Lee Do Hyun in their past shared so much more chemistry. They were definitely the highlight.

The show had breathtaking shots and cinematography. But the heavy use of CGI and VFX did feel a little artificial. IU looked Etheral. Extra plus points to her styling department. The cameos were a treat for old IU drama lovers

Finally OST were the best part of the show. Would definitely listen to this album on repeat