Anata wo Haijin desu http://www.pixiv.net/member.php?id=27343

Also known as Anetawo Haijindesu, Anatawo Haijindesu, Kou, and Haijindeath

Onee-chan no Akachan Unda yo Touhou Project Doujin released Apr 1 '13 Comedy Ecchi Incest Koishi x Satori Non-science babies Yuri
1/66 of a Pure Loving Heart Touhou Project Doujin released Feb 9 '14 Blushing Comedy Drama Koishi x Kokoro Romance Yuri
Komeradi! Komeiji Radio Touhou Project Doujin released Mar 13 '20 Comedy Ecchi Incest Koishi x Satori Yuri