Just a Dealer
The musical notes flow through the air, lively and dancing alongside Eliza's musicians; the hall is buzzing with nobles eating, drinking, and chatting. It might seem like an innocuous gala to anyone, but the exchanged glances among the nobles reveal all kinds of intentions, especially the looks directed at Eliza and the mysterious woman beside her.
Most of the nobles try to disguise their curious glances while whispering questions and making spiteful comments, but Arthur holds no opinion of the woman beyond pure curiosity and looks at her directly without any intention of hiding it.
The woman acts like a typical noble, holding a large fan, which she uses to partially cover her face while her sharp eyes analyze the nobles in the hall, just as they scrutinize her. There's a lot of disdain in her gaze, but it doesn't seem like the usual false sense of superiority nobles display; it's something that makes her certain she is extremely different from everyone there.