DOREIKU The Animation - S01

Eager to find out why her best friend's boyfriend dumped her for a man, the headstrong Eiya Arakawa asks to meet with them. At a café, Yuuga Oota agrees to answer Eiya's questions only if she can work out the relationship of a couple sitting nearby, which she does on her first try. Impressed by her sharp mind and intuition, he invites her to a private meeting and introduces her to the Slave Control Method, or SCM, a retainer-like device that can turn people into slaves. When two SCM users duel, the devices put heavy pressure on their brains. Once the duel ends, the SCM heightens the loser's sense of obligation and forces them to submit to the winner. Eager to test his own ability, Yuuga asks Eiya to act as his insurance in case he becomes a slave himself. Given access to 10 million yen, Eiya's job is to persuade Yuuga's would-be master to set him free. Though she hesitates at first, his words speak to her own longing for something more in her life, and she agrees. But when a mysterious organization starts rapidly collecting slaves, Eiya gets pulled into a game far more dangerous than she ever imagined.