Romance book where the fmc is a slave

Hellooooo guys. I’m looking for a book where the fmc is a slave and her mmcs are in higher “positions”. I don’t care whether the book has fantasy elements or not. Bonus if it’s not in a modern society and the mmcs are cruel to her first but later feel bad (lots of grovel appreciated). I would love if the fml has the submissive type of character: naive, quite (bonus if she’s mute), overall scared and if it’s fantasy… she can have powers (bonus if not haha), but I don’t want her to be a warrior. I already read so many books about badass female characters. Rn I need some submissive, quiet characters where the mmcs are scared of her well being, protect her at all cost and treat her like a princess ifywim. Another bonus if there is a power difference between the fl and her mmcs. I want that the mmcs to be overpowered, scary, controlling, manipulative etc. !! (Lots of red flags haha)

What I don’t want is a servant/worker type of fl. I want her to be a slave or prisoner with trauma because of the constant shit treatment etc. I also don’t really like m/m and hate OW trope or cheating.

Hope you guys know some books <3