寿美菜子
An internet radio show produced by Lantis called aired between September 17, 2010 and January 10, 2011. The show was hosted by Aoi Yūki and Minako Kotobuki, the voices for Jubei Yagyu and Sen Tokugawa, respectively. There are four parts, or corners, to each episode. Certain episodes featured guest voices from the anime series, and listeners can send in comments of the show on the air. A CD of the radio show, called , was released on January 26, 2011 by Lantis.