Natsume Brothers! (21)

'''Natsume Brothers! (21)' (ナツメブラザーズ! Natsume Burazāzu! (21) ) is an internet radio show to promote Little Busters''!

Description
An Internet radio show to promote Little Busters! called Natsume Brothers! (ナツメブラザーズ! Natsume Burazāzu!) had a pre-broadcast on June 9, 2008, and started regular broadcasting on June 23, 2008. The show was hosted by Tomoe Tamiyasu and Hikaru Midorikawa, who voice Rin and Kyousuke Natsume from Little Busters!, for the first 35 broadcasts. Starting with the following broadcast on March 2, 2009, the show's title was changed to '''Natsume Brothers! (21)' (ナツメブラザーズ! (21) Natsume Burazāzu! (21) ), and a third host was added, Miyako Suzuta, who voices Kudryavka Noumi from Little Busters!.'' The show's final broadcast, episode 170, was on October 24, 2011. The show was streamed online every Monday, and was produced by the Japanese Internet radio station Onsen.

An exclusive 22-minute broadcast of the show was included with the first press release of ''Little Busters! Ecstasy'' sold on July 25, 2008. The first volume of a CD compilation containing the first eight broadcasts (including the pre-broadcast) was sold on August 15, 2008 at Comiket 74, and was sold for general sale on September 24, 2008. Volumes two through four were released between November 26, 2008 and March 26, 2009, containing the remaining broadcasts of Natsume Brothers! through episode 35. The first volume of a CD compilation for ''Natsume Brothers! (21)'' containing the first nine broadcasts was released on June 26, 2009. Volumes two through seven were released between September 25, 2009 and September 22, 2010, containing the broadcasts through episode 63 of ''Natsume Brothers! (21). Volume eight was released on November 26, 2010, containing the broadcasts from episode 99 to 107; episodes 64 through 98 of Natsume Brothers! (21)'' were not sold in CD compilation volumes. Volumes nine through 15 were released between January 28, 2011 and February 24, 2012, containing the show's remaining broadcasts to episode 170. An exclusive broadcast of ''Natsume Brothers! (21) was included with the release of the PlayStation 2 version of the game, Little Busters! Converted Edition'', on December 24, 2009.

A second Internet radio show to promote the anime adaptation titled Little Busters! R began broadcasting on October 5, 2012. Like the previous radio show, it is hosted by Tamiyasu, Midorikawa and Suzuta. The show is streamed online every Friday and is produced by Hibiki and Onsen.