Sakaki Kayumu — https://www.pixiv.net/member.php?id=5577238

Also known as 127okayu and sakaki127

Hidamari Sketch Anthology Comic ch14: Hidamari Et Cetera *Midnight Party* Hidamari Sketch Doujin released Apr 7 '14 4-koma Comedy

Hidamari Sketch Anthology Comic ch10.5 Hidamari Sketch Doujin released Sep 1 '14 Comedy

Secret Borderline Love Live! Doujin released Jul 22 '22 Kotori x Nico Yuri

Secret Weekend 1 Love Live! Doujin released Jul 22 '23 Aaaaaangst Kotori x Nico Yuri

Secret Weekend 2 Love Live! Doujin released Jul 22 '23 Kotori x Nico Sequel Yuri

The Nightingale Sings No Prayer Love Live! Doujin released Jul 22 '24 Kotori x Nico Sequel Yuri