Murasaki's feed

I've been wondering, Is Roxanna a Villainess? I mean it didn't mention in the book that she was one. In fact, she was just an extra without a single screen time. And in the moment she entered the book, she didnt do anything villainous to the main characters. If we base her on the heroin's POV, She is a supporting character that saved her brother from the actual Villains. Well, she have that Villainess Aura and vibe. But is she a villainess tho?

I'm just wondering please no hate