Seeing this drama's trailer on the front page of MDL made me watch this. It was only the 2nd historical Korean drama that I've watched, so based on the genre and concept, I can only compare it to Hwarang. It has everything: action, comedy, romance, drama. For some reason, I really admired the first couple of episodes but I started to lose interest very soon. Probably because the storyline was quite unrealistic and predictable at times. I felt obligated to continue watching. Despite the plot holes, I was really drawn to the gender-bender side of this series although it irritated me at times. The lead couple had an amazing chemistry. Although I'm really late on this one, this was the series where I discovered the amazing Park Bo Gum. Damn, he has charm and his acting skills are top notch. The soundtrack was quite powerful as well which made the drama even more emotional and enjoyable. This drama is an easy-to-watch historical series for beginners that are only starting to get interested in the genre. Especially romance genre lovers, beware of the cutesy/lighthearted romance scenes and start watching this!