Nana-shi(ななーし) or NashiNashi(なしなし) is an artist who posts Mecha Musume artworks on the mil.homeip.net imageboard,
In this board, all artists are called "整備士 (hostlers)".
See also
- BLOG: http://blog.livedoor.jp/nasinasi1/
- Pixiv account: http://www.pixiv.net/member.php?id=15725
- mil.homeip.net page: http://mil.homeip.net/index.php?%5B%5B%3A%A4%CA%A4%CA%A1%BC%A4%B7%5D%5D