If the K-First Daughter Possesses a Parenting Story

I transmigrated into a child-rearing novel.

Into a rather absurd role.

“The firstborn daughter who looks exactly like the cold duke of the North...?”

The eldest child of the duke's household, the heir who was supposed to adopt the female lead in the original story,

that taciturn but gentle-just-to-the-female-lead 'oldest brother.'

That role ended up becoming me!

“Bella-di is older, so she can give in, right?”

What's more, my parents raised my younger brother and me with obvious discrimination,

“As the heir, I order you to stop making trouble!”

the younger brother, the novel's second son, treated me with utter contempt.

...Fine, who cares whether I'm an older brother or older sister?

First, I’ll beat up this rude younger sibling.

***

After straightening out the hierarchy in the house, I decided to reclaim everything the original firstborn had possessed.

Loyal retainers, spirit treasures, and even the heir's position.

And finally, my father brought the young original heroine back home.

“This is Nesia, who will become the youngest child of our family from now on. Come, call me father from now on.”

“I’m your older brother! Hurry up and say it!”

The female lead, now only seven years old, was such a lovely, angelic child.

Of course I had no real interest in that.

There were plenty of hopeless adults around who doted on the female lead too.

But something seemed strange?

“Ah....”

“Right, father!”

“No, brother!”

“Sis...♡”

The female lead pushed past my frozen father and younger brother and came running into my arms.

I hadn’t even done anything for her, so why does she like me?