Artist.
Japanese name: なみz (Nami) (the artist said "the character 'z' is never pronounced!")
Circle & site name: SASAKAMA商店
https://www.pixiv.net/users/624428
https://www.pixiv.net/stacc/tsunnderekko
https://twitter.com/_namiz73z
https://twitter.com/namiz73z
https://twitter.com/intent/user?user_id=101168111
https://twitter.com/intent/user?user_id=1076694742287581184
https://sketch.pixiv.net/@tsunnderekko
http://imagis.jp/user/2136
http://namiz73z.wix.com/msskm
http://p.twipple.jp/user/namiz73z
http://twitpic.com/photos/namiz73z