Shattered Angels (京四郎と永遠の空, Kyōshirō to Towa no Sora, lit. "Kyoshiro and the Eternal Sky") is a Japanese manga created by Kaishaku which was first serialized in the Japanese shōnen manga magazine Monthly Dragon Age in May 2006. A 12-episode anime, adapted from the manga, aired in Japan from January 5 to March 23, 2007. The series refers to several of Kaishaku's past works: Kannazuki no Miko, Magical Nyan Nyan Taruto, UFO Ultramaiden Valkyrie and Steel Angel Kurumi. Source: Wikipedia (en)