em s
Artist.
Nickname: "ems" or "eｍｓ"
See also
- NicoNico Douga account: http://www.nicovideo.jp/user/1615744
- NicoNico Seiga images: http://seiga.nicovideo.jp/user/illust/1615744?target=illust_all
- Pixiv account: http://www.pixiv.net/member.php?id=6803312