Artist.

Nickname: ３８式 (サンパチしき, Sanpachi-shiki; the artist uses this spelling: "sanpatisiki")
The other name: さんぱちしき。 (Sanpachishiki.)
Circle & site name: 玉砕島 (Gyokusai-jima) (circle partner: kyuukyuu-shiki)

See also

• Circle home page: http://gyokusaijima.web.fc2.com/
• Circle blog: http://gyokusaijima.blog17.fc2.com/
• Pixiv account: http://www.pixiv.net/member.php?id=166750
• Pixiv sketch account: http://sketch.pixiv.net/@sanpatisiki
• Drawr account: http://drawr.net/sanpatisiki
• Privatter account: http://privatter.net/u/sanpatisiki
• Twitter account: http://twitter.com/sanpatisiki
• Pawoo account: http://pawoo.net/@sanpatisiki
• Circle.ms: http://portal.circle.ms/Circle/Index/10128916
• Comike Web Catalog: http://webcatalog.circle.ms/Perma/Circle/10128916
• Old twitter (deleted, the current ＠38siki is another person): http://twitter.com/38siki

(The artist had a Tinami account, too.)