Artist.
Artist name: オカベ (okabe)
Site name: パラレログラム (parallelogram)
https://www.pixiv.net/users/555811
https://www.pixiv.net/stacc/oka_4590
https://twitter.com/okabe16
https://twitter.com/intent/user?user_id=126881374
https://pawoo.net/@oka_4590
https://pawoo.net/web/accounts/191757
https://www.tinami.com/creator/profile/20530
https://okabe4590.wixsite.com/design
http://theinterviews.jp/okabe4590
http://twitpic.com/photos/okabe16