Funimation initially encountered production issues from the Japanese licensors , causing a series of delays with their release date .
The anime is licensed in North America by Funimation , and released both seasons on December 20 , 2011 .
Funimation initially encountered production issues from the Japanese licensors , causing a series of delays with Funimation 's release date .
The anime is licensed in North America by Funimation , and released both seasons on December 20 , 2011 .