Artist. Formerly tagged as 117 (artist).
Artist name: 117
The other name: 117&地鶏
Circle name: monochro sketch
https://www.pixiv.net/users/202236
https://www.pixiv.net/stacc/monochrosketch
https://twitter.com/1_1_7
https://twitter.com/intent/user?user_id=113078275
http://www.stickam.jp/profile/monochrosketch
http://p.twipple.jp/user/1_1_7
http://twitpic.com/photos/1_1_7
http://yfrog.com/user/1_1_7/photos