***I've included my thoughts on where the writers were trying to go with this in the comment section of this review. Still think they could have handled it better, but it does make much better sense now and had me improve my rating. Can't do a perfect 10 though - episodes 17 and onward were weak (not just with the romantic elements) and filled with stupid decisions and too much deus ex machina. Might change this entire review at a later date but for now it stays as it is an honest representation of how I felt at the show's conclusion and how poorly they executed their intent that I had to sit here ruminating for a week to see where they were going with this all.***

I haven't felt this betrayed by writing since the controversial last season of Game of Thrones. The entire premise of this show was built around the love story of SoBong (Bong Hwan in So Yong's body) and Cheoljong. From episodes 1-19, it was a steady progression of these characters falling in love with each other...not with a memory and not the physical appearance but the substance of each of them as they strove to understand and accept each other. It was one of the most beautiful love stories I've watched. The writers perpetuated this idea by various methods:

1. CJ's fascination with SB was completely with the SB personality. The audience saw his fascination with SB's otherness, heard it in his confession of love for them, and saw it in how he treasured those aspects enough to write them down and pour through them to reminisce and help heal his own wounds.
2. The writers made the SY character a stranger to the audience. We get only the barest of flashbacks, and nothing to show us anything but a one-sided love. Even the prequel in the Bamboo Forest leans heavily to this idea. Which is why so many viewers then feel puzzled as to how the ending makes sense.
3. The writers deliberately made it seem as if the SY character was gone. There's a scene where the queen jumps back into the lake in order to regain more memories and SY's "spirit" or whatever appears before her but at the end she sees her close her eyes and falls back to sink to the bottom. Additionally, when the BH character briefly flashes back to present times, SY does not return, even for a minute.
4. The writers showed a true progression of the feelings in SB for CJ. In the last few episodes, there were major milestones to be had and shared with the viewers. The character of SB accepts their feelings. Reciprocates those feelings. Initiates intimacy - which in a story of quasi-gender bending is a penultimate moment. It's all been culminating to this point where you feel as though everything leading up is falling into place and then Wham! We draw a "Go To Jail" card.

Not only is the soul sent back but the contributions of that character are marginalized. Heck, forget marginalized, they're not even acknowledged in the slightest...as if this brash and vibrant personality never existed. The continuity issue with that alone is enough to curse at my screen. The entire story was about Mr. Queen...yet when Mr. Queen "left the building," there was no true sense of loss felt by their friends or even their love. We get one scene where the king looks puzzled for all of five seconds and asks "did I lose something." Yes...the main character of this entire drama. The show had already struggled with continuity issues such as selective fighting skills to fit the narrative and other minor faux pas but this...who just negates the existence of the main lead? Sure, SY's body is still there, and she's conveniently staying mum about the entire thing and letting everyone think it was her the entire time. The fans vilified Hwa Jin Jo when SHE pulled that move, but it's all good now. A few curses interspersed with an annoying high pitched giggle, and we're supposed to buy that she's SB 2.0 as she simpers "jjeona" like a teenager. Meanwhile the main male character, who is brilliant enough to stage a coup against one of the most powerful families in history, doesn't notice a thing.

I can't with this ending. I just can't. It obliterated all of my excitement and joy at seeing this story unfold. Seeing CJ and SY hug at the lake was like seeing Bran crowned king. Felt like I'd been gobsmacked by a 747. All of these feelings of betrayal could have been avoided by better writing. I'm not intransigent. I could have gotten behind a SY/CJ ending, IF it fit the narrative leading up to the finale, but it didn't. So frustrating!!! The acting though. Not a single complaint there. The acting was brilliant. The music too. I still can't listen to "Here I Am" without tearing up, and the comedic scores were on-point. However, I can't raise my rating higher because despite all of these things being components of a whole, the writing is the heart, and this one stopped beating right at episode 20.