ビアンカ・オーバースタディ

The original work is a novel by Yasutaka Tsutsui, with illustrations by Noizi Ito. It was written with the light novel genre in mind. However, it contains a significant amount of explicit sexual content. Serialization began in the summer of 2008 in Kodansha's novel magazine *Faust*. An anime adaptation is currently in development.