Artist. Loves Fujiwara no Mokou. Formerly, mistakenly tagged as ryuutan matsuri.
Japanese name: 龍胆 祭 (reading is given as Rindou Matsuri)
Circle & site name: DOLCE LATTE
https://www.pixiv.net/users/180920
https://www.pixiv.net/stacc/matsuri0414
https://twitter.com/m_treee
https://twitter.com/intent/user?user_id=169427838
https://sketch.pixiv.net/@matsuri0414
http://www.tinami.com/profile/4799
https://www.tinami.com/creator/profile/26230
http://dolcelatte.blog.fc2.com
https://piapro.jp/dolcelatte
http://dolcelatte.sakura.ne.jp
http://doujinshi.mugimugi.org/browse/author/15625/
http://p.twipple.jp/user/m_treee
http://twitpic.com/photos/m_treee