Artist.　Uses the spelling of "unan" which should probably be "yunan" in proper romaji.

Japanese name: 桜井 柚南 (さくらい　ゆなん(?))

See also

• Home page: http://unan.sakura.ne.jp
• Pixiv account: http://www.pixiv.net/member.php?id=53325
• Tinami account: http://www.tinami.com/creator/profile/3312
• Twitter account: https://twitter.com/yuunan