First, some friendly words:
The music was on point (much better than say in The Crowned Clown).
The few fight scenes were fine.
The emotional scenes were well made (except for any deaths). In general, the production staff did a fine job.
Most of the actors were decently chosen for their roles (but all politicians were weak/unremarkable).


The first maybe 40% of the show are a generic Cinderella fantasy rom-com. The little attempted comedy isn't funny too often, but the leads and their chemistry are alright. After that though, there is so much dragging and nonsense, before it eventually culminates in something like a Wikipedia article. In hindsight, I just want my lifetime and sanity back.


== FULL-ON SPOILERS & COMPLAINTS FROM HERE ==

The core issue of the show is that it wants to both be a Love In The Moonlight- or Tale Of Nokdu-esque pure fantasy show, but then at the same time match the tragic real story to get those tear glands going. While it's still a romcom, you not only have the very silly secret Maidumminati organization of moon-sourced court lady villains complete with death temple and ninja girl assassination squads — but most importantly, only while it is a romcom, the FL has agency. The FL does things. The FL makes things happen and is pretty much the center of the story. The FL (of course) is a sassy FL that talks back to her king-to-be, yet at the same time they save each other's lives numerous times (through competence & effort!).
Admittedly there is a bit of puffing about the initial villain having set up the FL with the ML from her childhood on with the hopes of spying on him, as well as using their affection to prove he desires the king's "property", but that goes nowhere.
These characters they show us could just dandily shack up together in some royal arrangement, make babies, and live happily ever after. We don't even have an angry grandmother-dowager opposing this union! There is literally no obstacle to this union besides them opening their mouths to converse about it and ... the plot, its writer, and actual history.

Alas, the historical background to force into this is "this court lady rejected the king twice, and then at some point 15 years down the road she gets pregnant a bunch of times, and even tragically dies while pregnant; the king loved her a lot though".

Supposedly the real historical maid/consort (FL) had reasons like "I can't become your concubine if your actual wife hasn't born any children", but since Junho must stay pure and virginal for his one true love, no actress is even cast as his life-long historical wife. She is mentioned in passing like once or twice, and that's it.

So what do you do as a writer? Obviously, the FL does not want to be his wifey because.. well, dunno? Because she doesn't love him? Unfortunately they already showed that she did, so let's go for the next best thing: pretending not to love him. Even better, make it some grand parable about womens' rights. A poorly-treated palace maid has the freedom to go out to the market once per month, she can leave the palace for a short bit, wow, such independence in-between being forced to do menial jobs and being mistreated by those higher up! Meanwhile, a concubine/consort with maids of her own can't leave the palace at all! The horror! She only has one freedom left:
¯\(°_o)/¯ Loving the king sincerely, but not admitting to it. (⊙_⊙;)
It's one of the dumbestestest things I've ever seen in television.

As the FL refuses a reasonable happily-ever-after for very poorly defined, poorly expressed, and barely if at all comprehensible reasons, the ML is forced to wed the SML's 12 year old sister, but because Junho (ahistorically) does not want to be a pedophile, she (historically) dies of overwhelming sadness, and that makes SML turn into an insane traitor with a private army of ninja man assassination guards. For that stuff he (historically) is not beheaded, even though he really should have been, and not even exiled into far-away thorny shrubs – only so that he can later be an allegedly-not-scheming emo kid lurking around the palace to either get some power back, or have the FL for himself as a form of consolation prize because the ML can't (yet) have her. Ultimately he stays alive for a bit merely to send a truthful letter to the ML about how the FL and not him dutifully saved him a very long time ago. This whole arc is a waste of screen time.

In summary, TRS' FL repeatedly refuses the ML's declaration of love with the following consequences:
– A child she befriended has to marry him and dies unhappy. (Sparking the abuse/torture of other court maids as well.)
– Some mean lady is hired as the next consort, abuses the FL, and tries to get her beheaded.
– She herself presumably dies of pregnancy complications that would have been less likely at a younger age.

Needless to say, I vastly preferred watching the generic romcom Cinderella in the first episodes to the annoying troll that came after.

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Stuff that just never got cleared up:
– ML/FL never talk about the tattoo FL has.
– ML/FL never have an earnest talk about how the evil head court lady set them up to be together.
– What is the book of Yeong, ML's grandmother, even about?
– In the show, Head Court Lady Jo herself "caused" Sado to become unstable (as explained by the oppressed nearly-dead Court Lady Park), of course intentionally, merely out of jealousy for another woman. So she herself is the architect of the calamity that she claims to warn about. Why does the Maidumminati ninja clan follow her blindly when at least some of them know this? Why do they try to assassinate ML even after her death?
– Early on the show makes a huge deal about the funeral convoy for a royal consort versus the way a maid is evicted from the palace to avoid her even dying there. Given this, we should be shown FL's funeral procession, and the ridiculously long Wikipedia-style episode #17 has more than enough time for this.