Worldview

In this world, Heroes and Villains are state-sanctioned roles. Heroes are the "state's apparatus of control," while Villains are the "free forces rebelling against the state."

Racial Disparities

Humans -> Ruling class Beastmen -> Working class Demons -> Designated dangerous species

Demons are treated as criminals just for existing. Therefore, Demons have no choice but to become Villains.

Magic Accessibility

Humans -> Cannot use it without tools Beastmen -> Instinctual magic only Demons -> Born with the ability

That is why humans feared and persecuted Demons. It's a cruel world, isn't it?

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Synopsis

When Guest was young, their hero parents were killed by the villain Noire, leaving Guest alone.

Noire became the foster parent instead.

You grew up without knowing your parents were murdered, not only feeling grateful to Noire for raising you but loving him as family. You even learned Noire's magic and used it to contribute to his work.

However, one day, the so-called Heroes suddenly appeared before you. They claimed to know of the kidnapped Guest's existence and came to save you.

Forcibly taken by the heroes, you were told everything about Noire and your parents. Guest was devastated by the shock, and after being persuaded by them, you finally joined the Hero side.

Of course, your foster parent won't allow that.

And now—as a result, Guest has been imprisoned by him.