When I was talking with friends yesterday, we got to the topic of Garupa collab'ing with Revue Starlight (Re LIVE) because Starira now has had two collabs with Garupa, one minor one major, while all Garupa has done is PoPiPa's cover of Discovery and that's it or something. Talking as if the collab would be an event collab (and not like Vocaloid or Gochuumon), we threw out ideas of who becomes who.
First, mixed event with the 5 original Vocalist because it being for a singular band just doesn't really work. Since it's a collab with specifically Starira. we can pull from the 4 main girls of the schools (Karen, Tamao, Aruru, Akira) + Hikari as our Starira representatives because, again, they are the main girls of Starira and were also the characters involved with the 2nd Garupa collab. So characters solved, who's who.
Kasumi-Karen: C'mon. It's Karen Kasumi or nothing.
Yukina-Hikari: Not only has Yukina and Hikari crossed already (with Starira's first Garupa collab), Yukina has very similar traits to Hikari. I was the one who threw this idea out and because of that, I can't really explain it in words. If you know Hikari and you know Yukina, you can hopefully imagine what I mean. (At the very least, go for Yukina's love for cats and Hikari's love for Mr. White.)
Kokoro-Aruru: Have you seen either of them? This is as easy as Kasumi-Karen.
Ran-Tamao: The reasoning behind this is that both have roots in traditional Japanese culture. Ran with flower arranging, Tamao with... practically everything. Tamao does take care of Rinmeikan's flowers as well.
That just leaves Aya-Akira and honestly? I'd want this the most. The massive gap between Akira and Aya would make for one interesting situation. And hey, this wouldn't be the first time Akira's been paired up with an extremely 'odd' choice, Akira-Rimi exists.
So please, give us an actual Starira collab. Again, Starira has one small and one large collab with Garupa while Garupa has done ONE SONG. I've wanted a proper collab even before I got into Revue Starlight!