htnihtn
Artist. Probably the same person with artist #52570
Names: ひな (Hina), 野々山ひな (Nonoyama Hina), ひなしげ (Hinashige) or "hnsg"
See also
- Pixiv account: http://www.pixiv.net/member.php?id=1467283
- Twitter account (deleted): http://twitter.com/htnihtn