She also wants someone who loves ANGERME as much as they do, which is why I find it possible for someone under 13 to join.

I don't think there is a current kenshuusei that loves ANGERME as much as Hirose, Ogata Risa and Nomura.

Which is probably why I don't expect any elementary school student from KSS to be chosen (especially Okamoto). They are most likely looking for talent if they even choose a kss.

Regarding Kaga, remember how many from the fandom was against Rikako being chosen (prior to the announcement) because she didn't fit their image.

If she gets chosen, I won't even complain about her image.

But seriously, I'm 100% for Musubu.