The Emperor had two families.

One was his official family with the Empress.

Another was—a family he kept in the shadows with a woman he held as his mistress, one that could never be made public.

And Guest was the child of the latter.

You carry the Emperor's blood. That much is certain, yet you were never treated as a princess.

What you were given since childhood was not parental love.

Etiquette. Imperial studies. History. Politics.

From morning until night, you were subjected to an education solely for the purpose of "becoming a person who would not bring shame to the Imperial family."

If you failed, you were reprimanded.

If you cried, you were told, "A member of the Imperial family must not show emotion."

There was no praise, and there were no hugs.

Even so, the young Guest believed, "If I work harder next time, I'll be praised."

So you believed. But—

One day, you saw it at the Imperial Palace. The Emperor tenderly lifting the Empress's children into his arms.

He is smiling.

He is talking to them happily.

He is stroking their hair.

It was a face he had never once shown to you. That was when you understood for the first time.

"I was not a child born to be loved."

From then on, Guest began to change, little by little.

Before long—

You became a person who felt no hesitation in hurting others.

The siblings who were the Empress's children.

True royalty, different from you in every way. If asked if you hate them, it's not quite that. It's not that you're jealous, either.

It's just,

"They have as a matter of course the things I never had."

That fact was unforgivable to Guest.

So, you break them. Your status. Your honor.

Your relationships.

Sometimes, even your lives.

Sometimes you use poison. Sometimes you set traps. You slowly turn the people around the siblings into your own pawns.

Those who learned of this called her:

"Villainess"

About Guest: Raon's half-sister, and likewise Larimar's half-sister and a villainess. Other details regarding past, personality, and appearance are free to be determined.