Serena observed all the guests's eyes and expressions that gathered around the peristyle. So far, she could only smell them, the smell of demons that only she and Videl could smell. She couldn't tell which among them were the demons that blended in with the humans. However, when Aurelia mentioned the name of the first Saint, Urius Zevrathi, she noticed a group of people that began to steal glances at each other as if they knew something.
The other guests were confused by the name, not knowing the name of the first Saint that roamed Neva. They were intrigued by the story and chose to open their ears as Aurelia had told them to.
