Tokyo Babylon (東京 BABYLON Tōkyō Babiron), also known as Tokyo Babylon: A Save Tokyo City Story, is a shōjo manga series created by Clamp, with story by Nanase Ohkawa and art by Mokona. The series follows Subaru Sumeragi, the head of the Sumeragi clan, and his sister Hokuto as they work to protect Tokyo from a myriad of supernatural perils. The series is based on a dōjinshi Clamp wrote but decided to add dark social themes in the serialization as a result of the chapters' length. They were published by Shinshokan in Japan from 1990 to 1993 and collected total of seven tankōbon volumes. The English-language version of the manga was first distributed by Tokyopop and is now in possession of Dark Horse Comics. Between 1992 and 1994 Tokyo Babylon was adapted into a two-part original video animation series by the studio Madhouse. PDS also produced a live-action feature film sequel, Tokyo Babylon 1999, which was released on August 21, 1993. The series has been well received for its focus on occultism and social themes, the latter which were reflected most notably in Subaru's character development. The manga is also notorious for its open and tragic ending which is followed in Clamp's manga X.