Yuchi (Salmon-1000) http://www.pixiv.net/member.php?id=3246385

You Love Live! Sunshine!! Doujin released May 30 '17 Riko x You Yuri
Riko → You ♥♥♥ Love Live! Sunshine!! Doujin released Jul 26 '17 Riko x You Yuri
Childish Love Live! Sunshine!! Doujin released Dec 8 '20 Moe up the butt Riko x You Wholesome Yuri
The Two of Us Love Live! Sunshine!! Doujin released Feb 17 '21 Full colour Riko x You Yuri