Artist, illustrator, designer.

Japanese name: 赤りんご (Aka Ringo)
Name as a designer: 筑紫 真斗
Circle & site name: az+play
(He is also a member of Circle ”az”)

See also:

• Home page: http://azplay.net/
• Pixiv account: http://www.pixiv.net/member.php?id=164813
• DeviantArt account: http://akaringo.deviantart.com/
• Twitter account: http://twitter.com/aka_ringo
• Twitpic account: http://twitpic.com/photos/aka_ringo
• Circle "az" home page, titled Azuma Shoujuan: http://az.geo.jp/

• Identity theft account (according to the artist ([1] [2] [3] [4]), this person is NOT Aka Ringo): http://az-play.deviantart.com/