A Japanese visual novel developed by UNiSONSHIFT and released on September 10, 1999.
It has since been adapted into a light novel series and an anime television series animated by Zexcs and aired from January to March 2005. The best known of the versions is the visual novel, which features mild BL, and, in the original Windows release, hardcore BL. The story is owned by SOFTPAL and Platinum Label, and the illustrations to the novels and games is by Tsutae Yuzu.
