Artist, mangaka.
Japanese name: 市原 和真 (Ichihara Kazuma)
Circle name: 市松稿行 (Ichimatsu Kougyou)
https://www.pixiv.net/users/4302755
https://www.pixiv.net/stacc/rakkaseibakudan
https://twitter.com/kazumaichihara
https://twitter.com/intent/user?user_id=548693773
https://sketch.pixiv.net/@rakkaseibakudan
http://privatter.net/u/kazumaichihara
http://www.amazon.co.jp/s/field-author=市原%20和真&search-alias=books-jp
http://www.doujinshi.org/browse/circle/69784/
http://www.melonbooks.com/index.php?main_page=maker_info&makers_id=MK0000012264