Blue Sheep Reverie(青い羊の夢Aoi Hitsuji no Yume) is a Japanese manga series written and illustrated by Makoto Tateno. The manga was serialized in Nihonbungeisha's manga magazine, Nichibun Comics. The individual chapeters were collected into two tankōbon volumes which were released on August 28, 2006 and March 5, 2008. The manga is licensed in North America by Digital Manga Publishing under its Juné imprint, which released the first tankōbon volume on December 16, 2008. The second tankōbon volume is due to be released on October 21, 2009. The manga is licensed in Germany as Blue Sheep Dream by Egmont Manga & Anime.