 The series was released on six Blu @-@ ray Disc ( BD ) and DVD volumes between April 27 and September 21 , 2011 , having been delayed from the original release date of March 30 , 2011 due to the earthquake . Drama CDs were included with the first , third and fifth BD / DVD volumes . The sixth and final volume released on September 21 , 2011 contains a director 's edit of episode 12 . The series began streaming on Crunchyroll on February 15 , 2012 , as well as on Hulu and Crackle . 
