This is literally the ONLY one of these villainess reincarnation manhwas I've read wherein the MC actually feels like a villainess. She's cunning, self-serving and even somewhat sadistic. She only became a villainess because of circumstances imposed on her; but even after growing more mature and being reincarnated, it's not like she's suddenly a saint. Even if she is witty and charismatic the story makes a point of showing that she is still somewhat a genuinely unpleasant person and I just love it so much ! it makes her feel so much more fleshed out, on top of the fact that even though she takes challenges in stride, she can still be caught off guard sometimes and come to incorrect conclusions (albeit reasonable). It makes me root for her so much harder, I share her satisfaction in the slightest of victories, and am delighted by her cruelty. The revenge aspect of the story is truly it's whole focus, it --and subsequently the motivations of the MC-- are not immediately derailed by the presence of a love interest which is also refreshing. Knowing how distinct of a personality the MC has, I actually look forward to the implementation of romance in the story, because I know that it will be unique rather than the predictable slog you can expect with most other reincarnation manhwa romances.
The Villainess Reverses the Hourglass