>>2095266Not the other anon, but I thinks it's less that they can't and more that the EN girls don't really want to/are not interested in collabing with the Stars for various reasons:
Gura has only really collabed (directly, since she has been on some group collabs) with Anya and Matsuri and the latter was for a song which is to be expected considering that she is pretty shy and awkward and doesn't really knows much japanese.
Ame doesn't mention the Stars much anymore after some of her fans, and a few of Astel's, freaked out over them interacting, Ame even once said that she didn't want to upset her fans when asked if she would collab with the boys
Kiara hasn't shown any interest on them outside of Holotalk, but she said that she would only invite them after she was done with all the JP girls, which at the pace she is going and the amount that there are right now (and will be, since she will also prioritize any new gen that comes out) it will take a long, long time before she reaches them (though I think she mentioned the possibility of a special episode featuring Roberu).
Ina, I'm honestly not sure, but she did interact with them on a few ocassions and even moderated Roberu's chat once, but who knows if she will collab with them, as far as I have seen she doesn't seem too interested and is probably busy with other stuff.
