Artist name: 川上修一 (commercial), SYU (doujin)
Homepage: http://www.bandit99.net/
Pixiv profile: http://www.pixiv.net/member.php?id=587083
Old Homepage (Dead): http://bandit99.hp.infoseek.co.jp/
Archive of old homepage: http://web.archive.org/web/20090308050120/http://bandit99.hp.infoseek.co.jp/