I tuned in because of Kim Jung Hyun. I saw him in Crash Landing on You and thought his acting was superb. Plus, this drama received some high marks. There is a twist to the soul-swapping storyline in that Shin Hue Sun's character has both souls in one body fighting over who will dominate. She does an amazing job of acting masculine within a feminine body and during a submissive female cultural period of time. I think her acting dominated the storyline, and I was especially charmed by the "texting" she started with the King Cheoljong. Kim Jung Hyun's acting was again superb. He has range in his acting skills and will be a dominate leading man in many, many types of dramas, of which many I will tune into. Another character that held me through the drama was Cha Chung Hwa. I have seen her in several dramas, and she never fails to entertain. She is also an excellent and versatile character actress and commits herself to every part. The story ebbed and flowed, with some parts slower than others, but still carried the viewer forward to the finale. It was exciting, heartbreaking, romantic, intriguing, funny, and typical all in the right places. The only improvement I would recommend is in the music score. I think musical compositions can add so much to a storyline, but for some reason the producers did not feel that was necessary here, but I felt it was lacking. Other than that, I applaud the screenwriters, producers, directors, the main and supporting actors, and the rest of the cast for a really entertaining production....thank you!