Artist.
Used to update very slowly (once every 1-3 months) fueling rumors that he is a pen-name for a well known manga-ka.
Somewhat infamous for creating 1 shots that look like they should be part of a series, then never creating part 2, causing no end of complaining from newbies on the various *chan sites.
Formerly a guro artist who delved into exhibitionism and humiliation themes. Has reformed since his original creation Ijiranaide Nagatoro-san debuted and became popular.
Artist name: "774" or 七七四 (Nanashi)
Circle name: 774ハウス (774 house / nanashi house)
https://www.pixiv.net/users/72342
https://www.pixiv.net/stacc/774n
https://twitter.com/774nanash
https://twitter.com/intent/user?user_id=1589347081
https://seiga.nicovideo.jp/user/illust/446380
http://com.nicovideo.jp/community/co2504607
https://nnnn.fanbox.cc
https://sketch.pixiv.net/@774n
http://nanas.x.fc2.com
http://nanashi.sakura.ne.jp
https://www.nicovideo.jp/user/446380
http://nanas126.blog.fc2.com
http://video.fc2.com/en/a/member?mid=58255143
http://twitpic.com/photos/774nanash
