Doujin circle, mainly creates card game-themed products (card sleeves, playing mats & etc.).
The true illustrators' names are written on the tweets.

Circle name: RINGOEN
Current leader: 春乃りんご (Haruno Ringo) (probably [[Moni_(cRedo)]]'s pseudonym)

h4.See also

* Website: http://ringo-circle.com/
* Twitter account: http://twitter.com/RINGOEN_Apple
* Circle.ms: http://portal.circle.ms/Circle/Index/10357351
* Comike Web Catalog: http://webcatalog.circle.ms/Perma/Circle/10357351
* Booth web store: http://ringoen.booth.pm/
* Haruno Ringo's pixiv: http://www.pixiv.net/member.php?id=26991444
ringoen