After their 3d debut, what would happen if only one of them ended up being invited for a 3d birthday live? Obviously the one who wasn't invited would seethe.
It could happen unintentionally.

>Gura sempay invited my sister, but didn't invite me!!! I'm mad as fuck, I'going to quit hololive!!!!!!

An airhead like Gura could end up forgetting to meantion Mococo and only remembering Fuwawa.

Print this post, it will happen.