My billionaire roommate is the Demon King Episode 4
Episode: 4Episodes: 30
Episode 4 recap
Inside the wrecked living room, the operative demands Emma Carter leave with him. Lucien Black admits that remaining near him is dangerous, but Emma defends him because the operative broke in. The operative tosses a metal disc under Emma, sparking a painful golden symbol. Lucien grabs her hands, triggering an explosion of light and dark smoke. The operative realizes a soul contract now binds their lives together, calls in Protocol Black, and flees.