What is this from? Asking for a friend...
Seconding this.
...also for a friend
https://www.pixiv.net/member_illust.php?mode=medium&illust_id=33811201
Found the pixiv profile.
Bumping for a friend...
>>15495144
[Kouketsu no Otome] Josei Joui Shakai no Gakkou Seikatsu
https://exhentai.org/g/575263/d1b461a43e/