Hakushaku to Yōsei is a series of light novels written by Mizue Tani and published in Japan by Shueisha. The story is serialized in Cobalt magazine and illustrated by Asako Takaboshi.
Shueisha has commercially released two drama CDs and a manga adaptation has begun serialization in The Margaret since the September issue in 2008.
An anime adaptation was broadcast from September to December 2008. A visual novel for the PlayStation 2 was released on April 30, 2009.