The description made me very interested in the story. Why? because everything made sense from each's character point of view and agenda, that alone was very promising. Unfortunately the description is completely wrong. She has not been particularly capable, ain't regent, ain't "a masterful administrator", just a capable one and she isn't perfect either (at least the manhwa doesn't show any of those), how she let's herself be trampled by a mere uneducated slave is enough proof of that, thou regal, she's not that magnificent. Likewise there has been no clue as to why the Emperor suddenly becomes an idiot and a puppet, he antagonizes the Empress and therefore her entire household (oldest and most powerful nobles of the empire apparently, cradle of countless Empresses) and risks political strife, for what? getting laid? getting pampered by a beauty? So the Emperor ain't capable either, he's incompetent and blind. And this wish mentioned, the desiring for a wife instead of a college and the conflict with the Empress threatening the Emperor's authority also doesn't appear in the manhwa.
Most of all, after the 1st ch. I feel conned... 30+ chs in the story hasn't even started... since the event in which she announces she's going to remarry to the neighboring Prince in ch 1, the story went to the past and it's all about the FL having to put up with unreasonable demands from a clown emperor and a slave->Citizen->Concubine->future Empress (in a record time of a few month to boot). Needless to say, this is nothing but annoying. It would have been better to either not show that scene at the start or just rush this first part. Worse still, according to the person below there is a looong way till the story reaches that initial scene... I think many people are like me and wanted to read the story of the remarried princess, not the story of why she got remarried and all the crap she had to put up with.
Oh and it's riddled with inconsistencies and incoherencies... figures. For example, people entering the royal palace as they please.
By the way, are they King-Queen or Emperor-Empress? I'm a bit confused there (thou this is most likely a TL problem).
I'm dropping this, may try again when the story gets to that start point. Seems around chapter 80 is that milestone.
PD: there is magic, so it would have been interesting if the slave had actually been sent by the neighboring prince to cast a charm spell on the Emperor, make him dump the Empress and get the Empress for himself. What a wasted opportunity.
PD2: The best thing about this manhwa are actually the jokes made by Rumpi with Potato at the end of each chapter, hilarious.