Responses
You won't really connect them tho, even their names are different but if you are interested
Loli is from this manga, http://www.mangago.zone/read-manga/nanashi_no_asterism/. that one's shoujo ai with a pinch of shounen ai
And the sporty one is from here, http://www.mangago.zone/read-manga/about_getting_asked_out_by_the_biggest_misogynist_in_school/. it's shounen ai,
I can't find the Cutie's one tho, not even in manga update......

I'm glad the previous characters from the other series are somewhat included in this manga (and I want ushiwaka to be the bottom he just seems cute to me, and I would like ryuugasaki to be the top considering their expressions and how they act lol)