Dorei-ku: Boku to 23-nin no Dorei (Japanese: 奴隷区 僕と23人の奴隷, lit. "Slave District: 23 Slaves and Me") or simply Doreiku, is a Japanese novel series written by Shinichi Okada. A manga adaptation illustrated by Hiroto Ōishi ran for 10 volumes starting in 2012. A live action film was released under the title Tokyo Slaves in 2014, and an anime television series adaptation of the manga aired from April 13 to June 29, 2018. Shinichi Okada originally serialized the series as a web novel on the novel submission website Everystar before it was picked up for publication by Futabasha, who published it as three novels between 2013 and 2014. The main series was followed by a side story, Dorei-ku: Boku to 23-nin no Dorei.ex (奴隷区 僕と23人の奴隷 ex.), and a sequel, Doreiku 2nd Shinjuku Kikō Kai (奴隷区2nd. 新宿奇行会), both in 2014. A second sequel, Dai Doreiku: Kimi to 1-Oku 3-Senban no Dorei (大奴隷区 君と1億3千万の奴隷), has published two volumes since 2017.