Artist.
Japanese name: シイナ マシロ (Shiina Mashiro, the artist uses this spelling: "Siina Masiro")
The other name: *マシロ* (*Mashiro*)
Site name: 宵路 (yoiji)
https://www.pixiv.net/users/190987
https://www.pixiv.net/stacc/siinamasiro
https://twitter.com/masiro_
https://twitter.com/intent/user?user_id=81181602
https://sketch.pixiv.net/@siinamasiro
https://privatter.net/u/masiro_
http://p.twipple.jp/user/masiro_
http://twitpic.com/photos/masiro_