Tomboy
It's most definitely not something she can wear to see Kane Boron.
Remembering how Priscilla use to dress whenever she sees her and Kane, how she looks sophisticated, charming and alluring as well and she realized that being a woman is a lot of trouble. If she was to be Oliver now, just a shirt and a pant will be enough to see Kane. She left her room for her aunts, all the way making a mental note to herself to go shopping for female wears if she knows she wants to keep up her little game.