nanatsugumi
Artist, eromangaka.
Pen name: 七宮つぐ実 (Nanamiya Tsugumi)
Circle name: ななつ組 (Nanatsu Gumi)
See also
* Homepage: http://nanatsugumi.blog.fc2.com/
* Pixiv: http://www.pixiv.net/member.php?id=43326
* Nijie: http://nijie.info/members.php?id=211529
* Twitter: http://twitter.com/nanatsugumi
* 2nd Twitter: https://twitter.com/nanatsu_illust
* Comike Web Catalog: https://webcatalog.circle.ms/Perma/Circle/10027601
* The Doujinshi & Manga Lexicon: http://www.doujinshi.org/browse/author/63161/Nanamiya-Tsugumi/