Hattori Masahiko http://www.pixiv.net/member.php?id=157342

Also known as Macchi, match, and 20twenty

https://20ttwenty.tumblr.com/
https://www.melonbooks.co.jp/circle/index.php?circle_id=406
https://twitter.com/ninjamatch
https://ninja-match.com/
https://www.youtube.com/channel/UCrGVRsZDtUsf-uXod8IHDhw/featured

Valentine Kiss Nanoha Doujin released May 17 '15 Nanoha x Fate Valentine's Yuri
Love Laika The Idolmaster Doujin released Jul 2 '16 Anastasia x Minami Insane amounts of hand-holding NSFW Yuri
Revival Kantai Collection Doujin released Apr 30 '17 Drama NSFW