After reading so far into the story, she's such a mysterious character as it seems she's the only one unaffected by Sou's incubus powers. Even here, she's the opposite of most of the female characters in how she outwardly seems interested in him but she's completely disinterested internally. Her you ger sister, Kanaria, doesn't show any signs of this resistance (except maybe being one of the last of his guards to go full delulu) so it doesn't seem to be a Konoe thing either. I wonder if being someone who constantly has to interview boys, she grew an immunity through that?
Or maybe it’s like a handsome, rich heir guy in our world who's popular with women anyways; even in this gender imbalanced world, she still has easy access to guys making her feel blase about it?