Not that I’ve read and personally I don’t mind it. I mean it’s like historical fantasy so they have to have rules and cultural aspects of the past to be believable in their portrayal of a social system from the past. This is also such a minor detail in this manhwa it’s not like anything is going to happen because the maid doesn’t really like Ruth. It’s not like Maxi dislikes Ruth because her maid doesn’t like him.

Servant is wary of Ruth, the person helped mc the most but okay with literally others lol. She is so annoying.