What do you mean?
Well, even though it's only in title, she's still the Duchess right? Aside from Cassius' close aid, no one calls her as such. If I have to point out another flaw in the FL's character, she also doesn't exude the dignity a duchess should have. At the very least, she could at least use her authority once in a while. The fact that she was talked down by a servant of Ain(in the first few chapters) speaks volume of just how much a (-lowkey-) pushover she is. It's just my opinion though so take it with a grain of salt.
Now for me I would low-key be like that however unlike others once I know it's ok you won't be seeing Mercy till death
You might as well be right (⊙…⊙ )
Although it bothers me that almost NO ONE bothers to respect the social hierarchy, it was an okay read, nonetheless. 3 out of 5