Ai Kayano
Yoshitsugu Matsuoka and Ai Kayano, the voice actors for Sora and Shiro respectively, hosted an internet radio show on Hibiki Radio called "No Radio No Life". It was broadcast weekly between April 8 and July 29, 2014 and switched to a biweekly schedule since then. Twenty-six segments are planned and three CDs were released between July 2014 and February 2015. A special cross over featuring "No Radio No Life" and the radio series from "Bladedance of Elementalers" and "Lord Marksman and Vanadis" was broadcast by Hibiki Radio on January 1, 2015 and released on DVD on May 13.