Chronolog

Also known as Sakurazawa Izumi

Sleepless Banquet of the Eastern Country by Chronolog and Yuu Kamiya Touhou Project Doujin released May 21 '06 Drama Reisen x Youmu Romance Yuri Yuyuko x Youmu
The Butterfly Facing the Moon Akaiito Doujin released Jun 13 '07 Incest Kei x Uzuki NSFW Yuri
A Deep, Deep Puddle Touhou Project Doujin released Dec 21 '08 Fantasy Hina x Suwako
Scarlet Fatalism Touhou Project Doujin released Jun 27 '09 Moderate amounts of sex NSFW Romance Sakuya x Remilia Yuri
So Sweet Touhou Project Doujin released Apr 20 '10 NSFW Romance Yuri Yuyuko x Youmu