Was it really only 8 years? How often did the girls wear yukata, I only remember the gyaru dancing chapter, and the pseudo sensei date.
142: the mystery of bon dances
https://mangadex.org/chapter/8342402a-ad0d-4567-a464-0384d13fc831/1
239: The Mystery of Summer Festivals by Oneself...
No, I think he just put more efort into this twitter stuff unless his twittershorts somehow predate his actual doujin and commercially published work?
He can draw exceptionally well, it's why I found the shift to these roughly drawn twitter comic blobs unexpected