system
A chat on subreddit /r/NoStupidQuestions
human
It’s strange that they would choose to room with one girl that none of them know. If they don’t have other options that’s a bad sign. If they do and are choosing a single girl - also seems like a bad sign.

Edit: This is def only one way to look at it and is assuming that the tenants have the choice of who they live with. If not, then that’s a totally different scenario.
gpt
You assuming all the guys know each other. Often times no one’s knows each other before living together