Nothing, she never finds out what the Prince does to those who wronged her and lives in ignorance, he dos this cause he KNOWS she will "worry" but everyone gets what they deserve, the only exception being her Business Partner, the old man that was HAPPY she died cause he gets ALL the business, turns out his TRUSTING someone FMC told him not to trust cause he got GREEDY and tried to claim it was about making money which "She wouldn't understand" got screwed over by the person he trusted like a chump, if not for if I remember a countermeasure FMC put up beforehand, he would have lost EVERYTHING, unlike everyone else, he DOES learn his lesson and becomes better for it, basically he learned NOT to confuse GREED with ambition! Sister does have regrets, Forgot what happened with her but that's all we got, her mother ABANDONED the asshole Sperm Donor, but I think it was said she shacked up with a "better man" who's a FUCKNG BLUEBEARD so she's on her way to being another dead waifu I believe, she regrets NOTHING, and we only get IMPLICATION, the Prince suffers BACKLASH and consequences for the annulment as even if FMC reputation was TAINTED by what she was suspected of doing before she died, it still brings PITY enough that he looks HORRIBLE for how he handed "breaking up with her!" I'll give you more on her death and the circumstances in a bit in another spoiler! Her father suffers a HUGE fall because as she warned, the moron was SO focused on his glory days and the WAR that he REFUSED to adjust to "Peace Time" so all his spending ALSO created the threat that he would be excused of rebellion! As they say "Heroes" should know when to keep their HEAD DOWN and his PREPREATIONS for another war, ESPECIALLY getting weapons of War HE'S NOT SUPPOSE TO PRIVATELY OWN assured he was in the position to be made into a "Fallen Hero who let his delusions of grandeur get the better of him!" Not that he is to be pity, he virtually made ALL she did to make up for his AND his 2nd wife spending POINTLESS and even used the RUMORS of her being BAD to JUSTIFY hating her just to be PITY as the father of a dead bad girl! So he deserved losing everything. Some people aren't HAPPY with the Prince ML for being this manipulative as said, the ending has her NEVER find out what happened to everyone else but the Accountant who was helping her! I feel for him cause he TRIED but that moron meathead father of hers reminded me of a few "Exiled from the party" when the Financial IDIOT of the part that kicked the MC out finds out about the money they were saving everyone and accuses them of emblazonment just to JUSTIFY exiling them more claiming they were "holding out on them all" and basically PROJECTING what HE would have done which is WASTE the money instead of saving it! Usually a CLUE their going to end up POOR by the end now that there's NO ONE WITH A BRAIN/COMMON SENSE to put a control on the OVER spending