heidi_(gray_all)
Artist.
Japanese name: 灰塚ハイジ
The other name: ハイジ (Heidi) or ハイちゃん
Circle name: ぐれいある! (GrayAll!)
See also
* Profile page: http://twpf.jp/gray_all
* Pixiv account: http://www.pixiv.net/member.php?id=7507419
* Privatter account (1): http://privatter.net/u/gray_all
* Privatter account (2): http://privatter.net/u/gray_paro
* Twitter account (1): http://twitter.com/gray_all
* Twitter account (2): http://twitter.com/gray_paro
* Ask.fm account: http://ask.fm/gray_all