How To Survive As The Villainous Younger Sister

“Wow, my older sister is unbelievably handsome!”

A duke who can’t take his eyes off me,
a glamorous and stunning older sister.

I thought I had been reincarnated as the youngest daughter of a ducal family in a childcare romance fantasy world where everyone loves me…

But—

“This isn’t a childcare story!”

It turns out the novel I possessed isn’t a childcare story at all,
but a revenge story.

Worse yet, the character I possessed is the villainous younger sister who gets her revenge taken on by an older sister—
an older sister whom I had killed in my previous life.

“Uh… Sister…”

If I want to survive, I have to absolutely stay on my sister’s good side.
And all I have to do is live quietly without drawing attention!

“I just picked it up on the way.”

But… my sister is kind of strange?

“If you get kicked out of the family, I’ll take you in and live with you.”

And… who is this guy now?