
I'm rereading now and it says she was rude and spent some money, like most nobles do.
The Queen's Evil Plan was just that her family was poor and powerless and therefore couldn't back up for 1st prince. But he really didn't needed it?? I mean, they didn't tell us there was some coup and if the 2nd prince got the throne , what the hell she did to get executed??! Even if she killed a few maids, she should have been sent to nunnery, she's a noblewoman after all.

I love stories about psychos and sociopaths, I really do. Their delusional way of thinking is hilarious, and the faces that creep was making were fun to see. It was ok before the kidnapping, but after I just can't imagine them being happy together. Shou shouldn't have believed that guy and his foolish pleas for forgiveness. Violence tends to recur.
Usually I prefer manga, but this one is lacking details, so check the novel out