Chama https://twitter.com/chamasuke

Also known as chamasuke and Chama Uji

Yuuka and Alice's Pink-colored Sunflower Field by Chama, Haruharu Robinson, Kuuchuusen Torakyatto, Makoto, MakotoJi, Myama, and Shako Touhou Project Doujin released Jan 21 '13 Alice x Yuuka Comedy Drama Reversal Yuri
Hidamari Sketch Anthology Comic ch02: Hidamari Anniversary Hidamari Sketch Doujin released Apr 7 '14 4-koma Comedy