Artist. Apparently she has another account for her activities on another site, but does not want the relation between two accounts to become public.

Pixiv nickname: はるんぐるん (Harun Gurun)
Old name: はるはる (Haruharu)

See also

• Pixiv Account: http://www.pixiv.net/member.php?id=438761
• Twitter Account: http://twitter.com/haruharuwwww
• Twitpic Account: http://twitpic.com/photos/haruharuwwww