Re: Who Attended?
Lan Xichen is coming to his first coven meeting! Since he is coming out of seclusion, he feels it is his duty as ranking member of Gusu Lan to begin getting involved with the covens, because they seem like the closest equivalent to the cultivator sects back home. At this meeting, he'll mostly just be listening unless specifically asked a question; he's more here to learn than to talk, at this point.
So yeah, Lan Xichen, standing around looking elegant and interested in the proceedings.