Quoted By:
Not that I think any of Suityan's friends will really care, but wouldn't it look a bit wrong (not sure if this is the right word) if she just invites one of them to her live? Especially since all of them invited her to their birthdays. That's why I think it'll be Mori or Azki, since she might have other reasons to invite them besides being friends (just like the explanations she gave for inviting Toko and Azki to her sololive).
Maybe I'm just overthinking this though