Artist.
He had another account in Pixiv. 
Unfortunately, Its member ID is uncertain.

Japanese name: 佐藤 想次 (さとう そうじ)
Old name: 夏目 愁 (なつめ しゅう)

Circle: 紙上岬 (しじょうみさき), 一睡餡 (いっすいかん)

h4. See also

* Old homepage: http://natume920.web.fc2.com/
* Old blog: http://tcowl.blog52.fc2.com/
* Pixiv account: http://www.pixiv.net/member.php?id=1145284
* Circle homepage: http://satou.s1.freexy.net/
satou souji