Artist.
Japanese name: 古城 斎 (reading is given as Koshiro Itsuki)
Site name: Ipomoea alba
https://www.pixiv.net/users/603701
https://www.pixiv.net/stacc/bind_weed
https://twitter.com/ipomoea_alba
https://twitter.com/xitsuki
https://twitter.com/intent/user?user_id=355943200
https://twitter.com/intent/user?user_id=925193018059005953
https://sketch.pixiv.net/@bind_weed
http://blog.livedoor.jp/x_itsuki/
http://photozou.jp/photo/top/1974748
http://twitpic.com/photos/ipomoea_alba
http://twitpic.com/photos/xitsuki
