Yuria 100 Shiki(ユリア100式Yuria Hyaku-shiki) is a Japanese manga series written by Shigemitsu Harada and illustrated by Nobuto Hagio. It has been serialized in Young Animal from 2006 to January 22, 2010. The individual chapters are collected and released in tankōbon volumes by Hakusensha with the twelfth and final volume released on March 29, 2010. In December 2006, the Kanagawa Prefecture labelled the book as harmful to minors per the prefectural youth protection laws. A drama CD was released in 2008. An adaptation has been announced.