The SCM strips away every polite fiction we use to avoid admitting what we actually want from other people. Every negotiation becomes a trap. Every confession becomes a weapon. You watch people destroy each other not because the plot demands it, but because they're both right, and that's the real horror. The show doesn't flinch when its characters choose slavery over loneliness. It costs something to sit with that choice and understand it.

Headstrong Eiya Arakawa arranges a café meeting with Yuuga Oota to learn why he left her best friend for a man. He agrees to answer only if she can read the relationship of a nearby couple, and she gets it right on her first try. Impressed, Yuuga tells her about the Slave Control Method, or SCM, a device worn like a retainer. When two wearers duel, the loser's sense of obligation is magnified until they must submit to the winner. Yuuga wants to test himself and asks Eiya to act as his safeguard, using 10 million yen to buy his freedom if he ends up enslaved. Drawn by her own longing for more from life, she accepts. When a secretive group starts collecting slaves at speed, Eiya finds herself in a far more dangerous game. The show is a psychological thriller adapted from an adult manga.