Artist: ast

Artist.

Pen-name: あs (A-s)
Circle name: ココです。 (Koko desu. or Coco Death.)

See also

• Pixiv account: http://www.pixiv.net/member.php?id=98192
• Twitter account: http://twitter.com/co2death
• Comike web catalog: http://webcatalog.circle.ms/Perma/Circle/10297445