The door opens, and into it goes a girl in her early teens. She's got her gray military pants on but just an undershirt on top, because her tactics teacher isn't a jerk about the uniform code and she got warm in the exercise room. But this is not the hallway out of her room. What the heck is this, Sue's dream bar?

...Well, if it's Sue's dream bar...

"Hey, is this Sue's dream bar?"

Yes. This is for you. A key appears.

That is indeed for her. She goes up to the corresponding room, checks it out, writes stuff in the notebook - wow, her handwriting is shit compared to the others', must be growing up with a desk - but there's nobody else here. She goes back down, gets Bar to give her a snack tray on Stella's tab, flops in an armchair by the fireplace with it.