西尾維新
"Mahō Shōjo Risuka" began as a series of light novels written by Nisio Isin and illustrated by Kinu Nishimura from Capcom. The chapters were published in the Japanese magazine "Faust", running from December 2003 to August 2008. They were later compiled into three light novels published by Kodansha from 2004 to 2007. In 2006, Kodansha announced a fourth light novel, , but it has not been released. The tenth chapter was scheduled for release in 2006, but was delayed till 2008.