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Yoichi Saotome Demon OnS Theories Thirteenth Theory Who Is In Control? - yamazaki-create.co.jp

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The question of who truly controls Yoichi Saotome cuts to the heart of power, manipulation, and identity — are his choices his own, or is he a pawn in a centuries-long demonic game?

Principal-Agent ProblemFree Will vs. DeterminismPower DynamicsIdentity Theory

Theory Briefing

  • Fan theorists argue Yoichi's demon side may be the true decision-maker, raising questions about free will versus internal coercion.
  • Seraph of the End Chapter 106 hints at hidden power dynamics, where control shifts invisibly between host and supernatural force.
  • The 'who is in control' framework mirrors principal-agent theory — loyalty and autonomy blur when the agent has a hidden master.