Ginkou no Kishi Kunshou (furigana: Ginkou no Reiter Crois) Lit. Sparkling Silver Knight Medal is a Japanese light novel series written by Kawaguchi Tsukasa and illustrated by Shibakura Noan. It was published by Kadokawa's Fujimi Fantasia Bunko between 2007 to 2008 with the title Reiter Crois and has been collected in five volumes. Starting from May 2014 the series is republished by Ichijinsha and illustrated by Asio.