Katsuo — http://www.pixiv.net/member.php?id=1799779

Also known as Signal Yellow and Milk Panda

Rainbow Color of the Summer Touhou Project Doujin released Nov 4 '13 Comedy Lily Black x Lily White Moe up the butt

Spinning Aureolin Touhou Project Doujin released Aug 31 '14 Comedy Lily Black x Lily White Yuri