Edit
A female artist.
She admits she is Kurodani Yamame in Hang in There, Kogasa-san.
Homepage: http://www3.to/sohma , http://www4.plala.or.jp/sohma/
Twitter: https://twitter.com/mizukisoh
Pixiv: http://www.pixiv.net/member.php?id=799484
Nobody here but us chickens!