The conversation above aside,
I wonder how Mitsuki will break it to Aya that she's not a boy and how Aya will react.
But seeing Mitsuki's fear of being out casted, it'll take a while for her to clear up the misunderstanding I guess. Or maybe a random surge of courage will become her drive to suddenly blurt out the misunderstanding..
Ahhh, or maybe the few next chapters are them but in school? I mean, Aya found some "similarities" between school Mitsuki and Working Mitsuki, would she play the smart girl and figure it out on her own? Or would Mitsuki let go of her fears and tell her first??
Aahhh! Or maybe they meet up, Mitsuki's intention to clear up the misunderstanding and Aya's intention to ask "the question", then they happen to talk at the same time and the awkward "ah, you go first-" "No it's fine, you go" troupe comes in and they both laugh dispelling the tense atmosphere between them.
Argh but this could also go into the angsty route where Mitsuki suffers from not clearing the misunderstanding as they keep growing closer, then something happens that makes Mitsuki confess she's a girl and after that Aya gets heartbroken from having had her first love be "illusion" all along. Then they slowly drift apart but one day crosses paths once more in school. Then another story pops out of this encounter.
Or maybe I'm thinking too much ¯_(ツ)_/¯