
I don't find her annoying just disappointing.
With her background, her skills and life experiences she has all the components of being great. She also has a positive outlook despite her bad experiences that makes her admirable.
She is just too silly. If her role was for comedic relief it would understandable but she isn't funny either. She's cute. But it seems that all the other characters, even small one, are more interesting.
I don't want her to be super serious either but she takes me out of the story with her lack of observation especially with her background, all it (past life, professional life, life as a slave, life as an abused princess, life as a prisoner and life as a slave now to the man that killed so many people in front of her).
I also don't buy her fear, misunderstandings and hesitations with the ML when she makes so many errors that from her view should get her kill and yet she makes more reckless mistakes again. I don't think I am not meant to think she isn't afraid of him, I think her character is a little all over the place.
Even the perverted girl that got the spanking in the Duke's room is a clearer character.
The way I look at the MC is that the writer wanted to many traits for her and maybe got a little lost.

Now that you mention it, it is very unlikely for someone who has that much life experience and knowledge to be this clueless. I think she is very cute................................................................................................................................................................................................................................................................................................................................................................... but I mostly wonder when she's going to get eaten by the archduke.
I am really having a hard time stomaching Chloe.
Everything else is top notch, though.