Suzushiro Seri
The author of Kazoku Game and Kusuri No Marjoram.
Official site: http://seri.kalin.to/d-b-c/d-b-c.htm
Pixiv Page: http://www.pixiv.net/member.php?id=12057
Twitter Page: https://twitter.com/suzusiroseri
Tumblr Page: http://suzusiroseri.tumblr.com/