The attributes I would assign to each girl from Bluebird, Edel Note, and the rival groups
Since Bluebird, Edel Note, and the rival groups don't have official attributes, these are the attributes I would assign to each girl. None of the Hasunosora girls have official attributes, but considering the 102nd, 103rd, and 104th classes' covers of Snow halation and Natsuiro Egao de 1,2,Jump!, you could get a pretty consistent attribute assignation, with Kaho, Hime, and Megumi singing the smile girls' lines, Rurino, Kosuzu, and Tsuzuri singing the pure girls' lines, and Sayaka, Ginko, and Kozue singing the cool girls' lines. I definitely can see the 103rd class, Megumi, and Ginko having the aforementioned attributes, and while I can see Tsuzuri and Kozue having them, I can also see them swapping. As for Hime and Kosuzu, I'm not sure, but I guess they fit?
Bluebird, Edel Note, A-RISE, and Sunny Passion were easy, especially considering the latter's attributes were basically confirmed in the original SIF game, but Saint Snow was pretty tricky. Sarah and Leah both have cool vibes, but I needed one of them to be smile or pure to balance it out. Eventually, I assigned the smile attribute to Leah so the Kazuno sisters could be a smile-cool sister duo, since the Kurosawa sisters are a pure-cool sister duo, and since I group Tomari with pure because of one of her SR cards in SIF2 and Natsumi was confirmed to be smile in the original SIF game, the Onitsuka sisters are considered a smile-pure duo.
