Kashiwagi Tsukiko https://www.pixiv.net/member.php?id=19600319

Also known as Tsukiko and Kuratsuki

The Meaning Behind the Bouquet Love Live! Doujin released Jul 22 '17 Kotori x Nico Yuri
Nicotori on the Way Home from Honoka's Wedding Love Live! Doujin released Mar 7 '18 Adult life Kotori x Nico Yuri
The Reason That Turns Red Love Live! Doujin released Mar 27 '18 Kotori x Nico Sequel Yuri
The Smell of Paint released Dec 3 '18 Artist College Yuri
The Smell of Paint twitter omake Original Doujin released Dec 16 '18 Artist Image set Sequel Yuri
A Lazy Brunch with You Love Live! Doujin released Nov 30 '19 Adult life Kotori x Nico Yuri
Mermaid Summer - Photogenic Vacation by Ameko (amknmmr) and Kashiwagi Tsukiko Love Live! Doujin released Jul 22 '20 Kotori x Nico Yuri