Yennefer.
Yennefer enjoyed making grand entrances. That usually meant you arrived just a little later, just into the thick of things, so that when the doors swung open at just the right time, it was noticed. While this wasn't quite the grand entrance as she had done so many decades ago when she swooped in to claim Aedirn as her prize. She was, however, wearing a notable dress which she'd received in her piddling dormitory closet this morning.
She strolled into the room, carefully taking in everything, stopping to talk with anyone who made eye contact. While she didn't know most of the people here, there were a few she'd taken notice of when she had been traveling, looking for the White Lady. Yennefer thought to test the bonds of that now-broken curse by taking someone to her bed.