koyuki.a
Artist.
Japanese name: 雨宮こゆき, mostly use the name "Koyuki.A" (in Roman letters) instead.
Site name: pucchi
See also
* Home Page: http://pucchi.cocotte.jp/
* Pixiv account: http://www.pixiv.net/member.php?id=61563
* Twitter account: http://twitter.com/Koyuki_A