An Assassin Family-Style Relationship

Good news: The Zoldyck family has a girl!

Bad news: There are five sons and one daughter.

Even worse news: Their refined, accomplished, elegant, scheming, perfect eldest son is no longer acting human.

When Illumi was twelve, his little sister was one.

When Illumi was twenty-four, his little sister was twelve.

Silva's left eyelid kept twitching. Menthuthuyoupi said a twitching left eyelid meant fortune, while a twitching right eyelid meant disaster. Surely it meant the family was about to come into a fortune.

No sooner had he said it than his darling daughter rushed in and grabbed his arm, overjoyed. "Dad! I want to marry Big Brother!!"

That day, for the first time ever, the eldest Zoldyck got a brutal beating.

Kikyo gave birth to six children in all: five boys and one girl.

When their little sister said she was coming home from a trip,

Illumi: Assassination on hold. I'm going to get her.

Menthuthuyoupi: Anime on hold. I'm going to get her.

Killua: Running away from home on hold. I'm going to get her.

Kalluto: Dress-up on hold. I'm going to get her.

Alluka: Wish-making on hold. I'm...

Silva: Don't.

This is a heartwarming story about the Zoldyck family.

The only girl in the Zoldyck family, Irolin Zoldyck, is a born killer and an obedient little sweetheart.

Nothing can stop Illumi from doing what he wants, not even his parents breaking his legs.

Irolin has an irresistible charm; everyone likes her, and everyone loves her.

The male lead is devoted to her, but he still can't resist sampling the wildflowers outside.

Irolin would close her eyes, open them again, and find that all her previous years of life had been wasted.

She transmigrated to another world and became the daughter of an assassin family. She had no choice but to abandon her long-held values and morals, go with the flow, and become an excellent killer.

Faced with her brother's possessiveness, she thinks: I like it.

Faced with her younger brother's obsessive dependence, she thinks: I love it.

Well, what kind of good person could possibly grow up in the Zoldyck family?

Many years later, her friend found her.

Friend: Why don't you run away, even though you're being abused?

Irolin: Abused? Who? Me? This is perfectly normal in our family.

Friend: Is that normal?

Irolin: Of course!

Her friend was furious.

Please note these changes to the setting!

Killua and Irolin are twins, and Kalluto and Alluka are twins.

Their ages have also been lowered by four years: when Killua is twelve, Kalluto is eight. Irolin and Irolin are both names; I haven't decided which "lin" to use, so don't worry about it. The heroine has an "absolute" irresistible-charm trait, and there are romance arcs with a female supporting character and Killua!

Theme: A little sister is everything.