I might be crazy here to right review when there are only 4episodes out. (thats when i started watching the drama were only 4 episodes out). But if you have watched Goblin you would understand why I'm being this way. Goblin was one of my favourite drama not only because of main lead actors but also because of Lee Dong Wook. So for this drama I won't explain the scenario anyway cause it's already written in the description of this drama.
Well I don't care about the ending but wait .... mmm.... I do want happy ending :)

Story (9.5) as of 14 episodes (edit 16 episodes)
I have watched some of the dramas on this tale of mountain fox / nine tailed fox. But this story was nicely dealt. In the modern age where CG are highly appreciated and graphic really are awesome in this drama, which added beauty of the portraying method of story. There were also dramas in Japanese which were also on the fox spirit / or similar type. But none was on par with this one. I'm also a graphic designer so for me there wasn't much more needed in graphics to add.

Acting (9.5)
You know if you are a fan of some artist you simply will give higher rating to that drama or if not rating then you will happily watch that till the end. Same is the case. But here is one this both the leads are flawless. Both are great are portraying their specific character. As to talk about Kim Bum I really waited for him soo long to have a main lead role, and my guy did really a great job. I hope he is casted as a main lead in more dramas. (Lots of love to him). There is also another character of YooRi which was done by Kim Yong Ji, as far as I remember she always has these type of roles The King: Eternal Monarch, I think she is great at showing this cool and cute side of her. She did well in it too.

Music (8.0) edit* I like its new ost, it fits the scenes. (9.0)
Well to talk about the OSTs of this drama I wasn't much into them. If you are considering DOTS type OSTs then it may give you a -ve point. Well its unto ones taste or depends on the mood, to me it was just okay. Apart from the OSTs, the background music was great that's why I gave 8.5 to this section. (edit* New ost was good I changed it to 9.0 now.)

Rewatch value (8.5)
As there aren't many episodes out there nothing can be said that if we can really watch it again and again. If this drama has Goblin type ending then I would say I will Rewatch it again maybe in the future. (edit* its upto how you wanted the ending but for me I will watch it again in future).

Conclusion
Actually I have watched over 500 drama that consists of Japanese / Chinese / Korean, and due to COVID19 thing to me there aren't many dramas, whom that I can watch or should desperately wait for the next episodes. To this drama I can say that I will desperately wait for the next week episodes. If you are Goblin fan or fan of fantasy and thriller plus romance type dramas then you should go for it. I think there won't there be anyone who hate or dislikes Lee Dong Wook. He has that such a charm. So if you love him that's a win win situation and if in case you dislikes him I will force you to watch it. Its worth it. There is a +point of KimBum, we all love him right?
Thanks for reading. Take care of yourself and your surroundings.