is a series of Japanese light novel

Light novel

A is a style of Japanese novel primarily targeting junior high and high school students . The term "light novel" is a wasei-eigo, or a Japanese term formed from words in the English language. Light novels are often called or for short...

s written by Sai Yukino

Sai Yukino

is a Japanese female author from Ibaraki Prefecture. She is best known for her light novel The Story of Saiunkoku series.-Light novels:Written by Sai Yukino and illustrated by Kairi Yura, the light novel series The Story of Saiunkoku has been serialized in The Beans since 2003...

 and illustrated by Kairi Yura. As of July 2011, the eighteenth and final volume was released, concluding the series. Four side story anthologies have also been released, collecting stories originally published in The Beans magazine.

A manga

Manga

Manga is the Japanese word for "comics" and consists of comics and print cartoons . In the West, the term "manga" has been appropriated to refer specifically to comics created in Japan, or by Japanese authors, in the Japanese language and conforming to the style developed in Japan in the late 19th...

 version, also illustrated by Kairi Yura, is serialized in Beans Ace, which is published by Kadokawa Shoten

Kadokawa Shoten

is a well-known Japanese publishing company based in Tokyo, Japan. Kadokawa has published both manga novels and magazines, such as Newtype magazine...

.