>>76325106yeah at least for those we know for sure, since shiraken was literally just Flare and then forcing Polka to be the only one she wanted to join at first. and bakatare honestly i don't know the entire lore but i think it was just a casual gaming group, with flare again wanting to add polka and besides fbk is also one of polka's best holofriends?
although Cover putting together units for "work" purposes is by no means a bad thing, i think NEGI-U was was just them putting together some super genki good dancers and they are good together for what they've done. nene and subaru together specifically are absolute gremlins