FYI: this is mostly a rant on the ending with a LOT of spoilers, please don't read it unless you've watched the drama.

Something light to begin with... the OST was good... until they played it at least four times each episode. Damn, tone it down a bit will ya?! The foreshadowing in the lyrics is another story, lol.

Now let's get to ranting:
If a sad ending is done well within one episode, I'll cry and rate the drama highly because I remember the good times but if a drama gives you whiplash and throws a million plot turns and character deaths your way for 6 hours straight I just get angry and mad.
One could search for the reason, is it censorship that doesn't allow for more than 40 episodes? So they squeezed all of their plot into the last 10 episodes... or is it because in historical c-dramas characters who (visibly) kill a lot on screen, whilst not being a general or something of that sort, have to die in the end? Who knows.

Once again we've gone through hell the last few episodes only to see a weird fever dream-esque scene, that will divide viewers for eternity, debating whether it's some "secret happy ending".
But don't get fooled... we've seen this happen one too many times to know better... to know that (especially) costume dramas tend to have this type of ending when the broadcasting platforms realize that they've got gold in their hand and want to keep the hype alive, even after finishing. Because who would try and find clues about a possible happy ending, if there wasn't this all-so-kind little scene at the end, so that we - the viewer - can ponder about the ultimate fate of the characters we grew to love, for days and months to come?

Frankly, I am sick of this sh't and if you are going to make a sad ending at least have the guts to not ruin it like that.
This drama was wonderful and if the last 2 episodes would have been sad - so be it - but for it to have 9 episodes of war, death and destruction... completely washed away any love I had for it. I'll give it an 8.5/10 regardless, since it ended up on my top 2 2023 dramas list (until today) and for that it deserves some respect.

Some things that angered me a lot :
EP29/30 we suddenly got a new CP, Yu Shisan and Chu Yue. Very surprising and thrown at us a bit like a curve ball. Nonetheless I quickly grew to love these 2 together. Now looking back at it, they rushed it way too much, should have been a red flag right away. Brings me back to my point earlier... I believe because of the 40ep cap, they cut or shortened this CP's story by a lot and just kept the essential... which doesn't work for romance. Especially not if you have a flirty playboy. No way he's gonna get whipped like that so fast. And then they didnt see each other for 8 episodes and guess what? we didn't even see their reunion! They just suddenly stood next to each other... but their dialogue gave away that there must have been scenes in between we didn't get to see. Poor girl didn't even get her father's necklace back.
Then for ep31-32 the narrator suddenly took over and things happened super fast without actually showing the scenes. That was very strange. Sure, dramas speed up at the end but they ALWAYS have a few calm moments in between. Not here. Because even if one character is sitting down for a moment, you can be certain another one is dying on the battle field in this very instance.
Plot armor, oh thy holy plot armor has done us so good for 30 episodes. What happened? Characters dropping like flies left and right. And then the big show down. Can I even call it that? Because by ep40, we've been through at least four show downs in the last 10 episodes. When the last 3 characters die, the scenes speed up even more and while we got 10 minutes to mourn the previous deaths and seen it in slo-mo, that is denied for the final 3. To be quite realistic, non the deaths were important to the story for the way it was going 30 episodes in. You can't tell me all those twists and turns of war and bloodshed was vital to the story. I mean... it even made me forget half of what happened before because it crashed, burned and set everything ablaze. Just as I am writing this rant I start to remember the good things earlier on. Is there such a thing as drama-trauma?

Lastly. No baby making was involved in this drama. That right there is where everything went wrong (if you know, you know)
'enough said. I'm just really let down by this ending. Heck, not even ending! The issue is it was 9 episodes of pure torture!
I watched Goodbye My Princess and The Rise of Phoenixes, but neither of them had such a butchering of main characters.

'since everyone in this drama got stabbed, why not stab the audience too?' - the makers of this drama probably.

post-ending clarity edit: The acting was really good, I loved the character dynamics and the lack of certain tropes. Loved how strong the girls were and the unconventional love story. Just everything after ep30 sucked.
My ideal ending, even with accepting losses, would have been blind YSS & Chu Yue to make it out alive and together… their story was cut short and I felt the most heartbreak about the "the one that got away“ situation. And of course our leads NYZ&RY to get away and live their life.
Or even an action movie type ending where everything settles down and suddenly they get a "call“ to save someone - the end! So their lives will go on and it’s not so final but rather their story continues off screen.