Dorei-ku: Boku to 23-nin no Dorei(奴隷区 僕と23人の奴隷) 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 premiered on April 13, 2018.
What if you could enslave anyone you ever wanted? Well, this comes close. The SCM lets you enslave anyone who is also wearing an SCM, at a price. One must win over the other, at anything, in order for the other to become their slave.