@Queen of Aces@Dark CloudBest wishes to Aces, hope she gets well soon.
DC, since you're co-GM here's my advice to you: It's already been stated OOC that Gello is pretty lazy, so her not showing up to tell the residents "hey here's the ground rules" in any kind of timely manner is no big deal. Thankfully, we have a map showing us all the facilities of the dorms already, and people are starting to explore the Home. We've also seen a slowdown in posts compared to the first night the RP went up, which is not unusual.
Players still have plenty to do--they can interact with one another, which can fill up multiple posts per player by itself. They can tour each floor and see what's in stock in the kitchen--Lilith mentioning the endless booze earlier sounds like an excellent party invitation. I had a little idea myself for Empusa demon-forging a megaphone at some point and making an announcement herself for the denizens of the girls' dorms, so that's a "mini-event" that could fill some time as well. It will probably take quite a while for us to actually "run out" of things to do, so don't stress over carrying the RP while Aces is out.