Lee Jae-wook, Jung So-min, Hwang Min-hyun
I really loved Alchemy of Souls. It was an intriguing fantasy tale with compelling characters and great world building. The effects looked good and the performances from and chemistry between the main actors were excellent. Although it was a long series (20 episodes at 75 mins each), it never dragged and was well paced throughout. I understand Part 2 (another 10 episodes) is coming in a few months' time, so I will look forward to watching that then and finishing the story. Definitely recommended to fans of fantasy K-drama; it gets five stars from me.