2021 may only just have started, but I'll nevertheless be surprised if this drama doesn't end up being one of the best of the year.
Great acting from the entire cast, but especially Kim Jung-hyun (who never overplayed his part and was the perfect match for...) and Shin Hye-sun (her mannerisms, talking and overall portrayal of a woman with a man's soul trapped inside her, was a joy to watch).
I've not seen a drama capture its story like this and its script, so well. Perfectly paced, funny, emotional, nail biting and so enjoyable. The main story was never lost and the character of Jang Bong-hwan was kept at the forefront throughout ~ even when Choi Jin-hyuk wasn't appearing! He was seamlessly reintroduced at given times too, which was cleverly done.
Even though this is fantasy, with a melding of 2 totally different eras hundreds of years apart, the direction and character portrayals made it possible to completely fall into it. Nothing felt a step too far.
I shall miss this so much and it's one I know I will come back to, again and again.