Responses
If the fools come looking for trouble that she went out of her way to avoid then she can just ligit betray her home kingdom with her family and go to her new hubby prince heir after killing them off. Marriage to the other kingdom's royalty and give their heads to his family as a gift. Guy was planning to go to war with her kingdom anyway 1st timeline so he would probably welcome it.
I hate that she died so horribly in the original novel. From some shallow prince and an like-minded 'heroine'. Hate them both, I know Sera isn't looking for vengeance but for an easy life - but she's talented and chances are she can't avoid those fools.
Hope they suffer.