Artist. Formerly tagged as oka (pixiv36449).

Artist name: oka
Other nickname / pixiv ID: okamuamu
Twitter ID: umanihiki

See also

• Pixiv account: http://www.pixiv.net/member.php?id=36449
• Twitter account: http://twitter.com/umanihiki
• Alt Twitter account: https://twitter.com/oka_madomagi
• Twitpic account: http://twitpic.com/photos/umanihiki