
This story is a neat twist on the reincarnated villainess revenge plot (with her being reincarnated years afterwards and not really wanting revenge). But I always thought it would be cool if there was a story where the mc was reincarnated as her former lovers child and they take revenge on their parents (it just seems like there would be a lot of drama with that kind of a set up). Is there a manga like that?
This one kinda comes close with her interacting with their child who resents the kind of people they are and I can't wait to see what he does in this story.

When her dad threatened that he placed people by her, the obvious thing to do would be to just fire all the staff. It's not like she's particularly close to them. Or at least fire the ones that where hired around the time they got married and investigate the rest.

But what's to stop her dad from adding more and outright killing her with assassins instead? Her dad could just keep planting more and more people without the Duke knowing, people who could get through a security check easy or who have no problems with slowly poisoning her (which I assume is what happened in her last life). Her dad has a great amount of power, that's why her husband agreed to marry her. If he had been able to overpower her father at some point, it would have been okay, but the damage from years of neglect would have still been there.

I'm wondering if in the original timeline if the old servants spread bad rumors about Reina, so the duke thought the situation with the baby was worse than it actually was. We know the old servants had no respect for her so they might have exaggerated some stories when they told the duke that she wasn't even touching the baby.
I'm not trying to excuse what he did, he clearly should have taken the time to find out what was really going on, but it might explain why he was so willing to remove his child from the situation.
This is a man that has never truly been told no, or has never been turned down in his ENTIRE LIFE. It's to the point where no one seems to think it's even possible. I feel bad for our main couple.