>>39253841>>39253915album cover art. similar sporty outfit, matching poses with hand positions, both have big asterisk decals on their clothes as opposed to the other holos that only have them on their accessories. you can easily imagine them doing some kind of dance together with these get-ups.
but the album cover might not reflect what they'll be wearing in their MVs, so the final piece of "evidence" is that they are paired together in some kind of extra gift that you get from ordering the album specifically from AmiAmi (along with Mori, who is on the covers album). we know that Laplus and Shion have a duet song since theirs comes out tomorrow, and they are also paired together in their extra gift thing (along with Sora. theirs is a bonus from ordering from Rakuten Books). Mumei and Kiara are also paired together in their gift and some people seem to think they have a duet on the covers album.
the holo27 website says the gift is two large bromides, so i'm assuming this means Gura/Bae are both on one and Calli is on the other. obviously just having the same theme/pose in the cover art and both being on the same bromide doesn't HAVE to mean they are on the same song since there has to be some solo song people doubling up on the cards as well, but...
