Artist.
Japanese name: ちよし, 千善 or 千葦 (Chiyoshi)
The other names: とりがなく (Tori ga Naku) and various temporary names
Site name: セブンデイズワンダー．("Seven Days Wonder." or "SDW")
Circle names: 七月のむじな (inactive, the other member: Anbu)
The other circle name: さかなのせかい or 七月の夜桜 (the other member: Negi)"
https://www.pixiv.net/users/39648
https://www.pixiv.net/stacc/toe5278
https://twitter.com/toriga_naku
https://twitter.com/intent/user?user_id=2375156719
https://sketch.pixiv.net/@toe5278
https://toriganaku.tumblr.com
http://sevendw.web.fc2.com
http://twitpic.com/photos/7_chiyo
http://twitpic.com/photos/toriga_naku
http://yfrog.com/user/7_chiyo/photos
