As the sort of creature who does everything on his own schedule (not that hypocrisy is something that's ever bothered him), Vena is more than accepting of people showing up whenever they want. As long as it's after the start time. Before that time, he would've ignore any but a very select few. After the start time, guests may come and go as they please, whenever they please.

All throughout the first part of the night, Vena paid no mind to the guests entering his home. He doesn't need to watch every single person who shows up. That would take up his entire night. It's difficult to ignore, however, when one guest's arrival changes the entire atmosphere of his home. He watches the way some of those around him react before finally conceding and turning toward the door, toward the one who's taking attention away from him. Not that he really needs to see who it is to know who it is. He can feel it in the air.

Vena gives it a little time before he seeks out his newest guest (well, the newest one that he actually took note of). He leaves his own companion mid-conversation and makes his way to Lucifer, inserting himself into the middle of the group that he's made himself a part of. He tips his head to one side as he looks over the Dark Prince, reaching out to runs his fingers over the golden cape. "Ancient Rome wasn't part of tonight's theme."