since ristretto is on a team with rock☆ freedom and she recently found out about lil bro I think it would be really funny if they were acquaintances online or through the cat cafe (where she does not work but is a fairly routine patron) and she just like

didn't know that the anarchy on the internet and free's anarchy were the same dude. most of her online presence is more toward science content but she likes to do the occasional cover and has done music before. she's self-taught, but took it extremely seriously.

... I was going to say "sadly she doesn't know anything about games" but I guess there's no reason she couldn't be into watching other people play them now that I think about it? it... it is an AU I suppose