The chapters are available but I sadly can't remember which chapters they were. She's a mouse in them.
I saw one, ch. 81.5. But that was her first appearance. I'm looking for the chapters where she was medium and large sized. :D
I'm pretty sure that appearance wasn't long after that.
I'm ashamed that I've literally just finished re-reading it and can't remember at all what part of the story it was in x3 (all my mind remembers is that he's already admitted that he loves her... but that's when she appears first anyway > . <)
According to the link below, in Yuki's part, medium and large size Yuki already appeared. Are these chapters already available here? Thankss
link: http://horimiya.wikia.com/wiki/Ishikawa%27s_Dreams