All but certain that's Otomore there... less so about Kinjyou, but I'm still marking it as her for the moment. And at least now we have the likeability for Osanai (and it's actually in the positives, too).

I didn't even notice Otomore till you pointed her out. That's definitely not Kinjyou though. The blonde background character has a green skirt, marking her as a third-year, like Osanai. It definitely does look like her though...

Osanai actually literally says "yes" here, so rather than say "'yes' or 'yes'", I opted to just leave the original Japanese affirmative as-is.