Artist, webmaster of his renowned webpage, 2ch全AAイラスト化計画 ("2ch's All Ascii Art Illustrations Project"). His art of Yukkuri Shiteitte ne gave it great popularity in the internet world.

Japanese name: まそ (Maso)

See also

• Home page: http://riceballman.fc2web.com/
• Nicopedia article(JP): http://dic.nicovideo.jp/id/4716874