This is the drama I've recently finished watching. I expexcted it for quite a long time and I had a high expectations about it.
The story is set in two different worlds- the modern Republic of Korea and the Kingdom of Corea. The series' genre is not only a fantasy but also a romance, so the main part of the story is the blossoming love between the King of the Kingdom of Corea Lee Gon(played by Lee Min-ho) and Jung Tae-eul(played by Kim Go-eun), who is a police officer in the Republic of Korea. The other thing in drama is the appearance of Lee Lim (played by Lee Jung-jin) who is the uncle of Lee Gon. He wants to become the King so he kills Lee Gon's father and tries to do the same with his nephew. Unfortunately the traitor manages to escape and go to the Republic of Korea thanks to the Manpasikjeok(a magical stick, which can open a portal between the two worlds). Lee Gon has the mission to stop him in order to keep both worlds safe.The drama has exciting and intricate plot so if you are interested in love stories with fantasy elements you'll definitely like it!The special effects were amazing! I could easily feel the difference between the two parallel worlds.The acting was so on point! Maybe it was very challenging for the cast to portray double images. For example Jung Tae-eul's counterpart in the Kingdom of Corea is called Luna and she is a thief.
All OSTs were good, but my favorite are : Orbit by Hwasa(MAMAMOO), Please Don't cry by Davichi, Heart Break by Gaeko and Kim Na-young and My day is Full of you by Wendy(Red Velvet) and Zico(Block B).
I hope my review is useful and I was able to make you check out this k-drama! Expect reviews on other series soon!