Chapter 1

“This world will be doomed.”

A room without people.

A young child with soft cheeks muttered sadly as she looked in the mirror—

“Because of me the ewnd… ouch!”

I bit my tongue again.

How many times has it been already?

The angry me looked in the mirror once again and shouted.

“Just why out of all the people, am I Diana Cartier!?”

I, who was just an ordinary college student, was reincarnated as the villainess of the novel, [The Ending Can’t Be the End of the World].

It wasn’t a great villainess either.

It was a villainess that was brainwashed by the real villain and committed all sorts of bad things until the end.

‘Even my few family members die because of me….’

I don’t even know Mom’s name nor face.

‘The former Marquess of Cartier, that is, Dad, also died not too long ago on the battlefield….’

The only family I had left now was my two Older Brothers whose mothers were different.

This is what people say about my Older Brothers and me.

‘The First Child, who is good at fighting but lacks humanity, Gabriel Cartier (the next Marquess).’

‘The Second Child, who is really good at fighting but too prodigal, Noah Cartier (a Sword Master).’

And lastly, me, the Third Child. What people say about Diana Cartier is…

“…The stupid youngest who doesn’t know how to do anything, only believes in her cute face, and causes trouble, is her.”

Whew—

With a sigh, I muttered.

Yes. The youngest stupid child, was now me.

When I grow up later, people will change “cute” to “pretty” and then continue to chat away behind my back.

Tsk.

“The stupid youngest who doesn’t know how to do anything, only believes in her cute face, and causes trouble, is her.”

When I said my future out loud once more, a sigh came out again.

To think that I learned that I have reincarnated as such a petty villainess thanks to the slip I had in the mine that I accidentally discovered.

‘Of course, thanks to that accident, I learned that I was born as Diana Cartier. But—’

The moment I fell on the slippery moss stone floor.

A ton of memories flashed through my mind.

There were memories of my past life.

And there were also memories of the kind of book that I read, that is, about this world.

After realizing everything, I was in huge shock.

The fact that I was a villainess– yeah, let’s just say it like that.

Of course, it wasn’t good, but all I have to do is change my mind.

Rather than that, the bigger problem was.

‘Gasp! There’s a fixed ending in which the world I live in will become doomed!’

It would be an even stranger situation if I wasn’t shocked.

A while after I quit eating snacks that I liked, I thought about it.

I soon realized one thing.

‘Won’t it be solved if I just don’t destroy the world?’

I knew, of course, that the end of this world was very important.

‘First of all, as long as the magic stone mine is found in our territory, I must prevent [Lucifer] from sneaking into our house.’

Lucifer.

Unlike his good name of ‘the one who shines’, he was the real villain who took the lead in destroying this world.

The one who brainwashed all of my older brothers, since it wasn’t enough with just brainwashing me.

What was worse, to the real main character…

‘Yeah, let’s not think that far…’

The urgent problem now was the fact that ‘Lucifer’ and his men are trying to steal the magic stone mine (that I discovered during the accident) in our territory.

‘That’s why, first, I have to protect the magic stone mine.’

The magic stone mine, which will make our family, who had honor but no money, sit on a money cushion.

It should never be taken away.

‘Otherwise, I’ll lose my family again.’

The eldest older brother who had always been cold but always protected me, Gabriel.

The little older brother who always bothered me but chose death for me, Noah.

And the others who loved me.

‘This time, I’ll protect everyone.’

Therefore, I must prevent the Villain’s subordinates from entering our house.

However, the problem is—

‘Bad Guy 1 was disguised as a candidate for management deputy and has already been interviewed, right!’

Of course, I haven’t been playing all this time.

I prepared very, very thoroughly for the past few days.

Therefore, this is the moment of the final battle…!

In order to strengthen my will, I glared at myself in the mirror.

“This world will be doomed.”

Good, this time I didn’t bite my tongue.

With this spirit—

“But, I’m not going to let that happen.”

Yeah, I will prevent the end of the world with my own hands!

“Let’s go.”

Holding a thick pile of documents, I left the room in good spirits.

Leaving Masha behind, a maid who found me opened her eyes wide.

“Young Miss Diana, today’s tea time… Oh my, Young Miss? Where are you going? That’s the direction of Young Master Gabriel’s office… Young Miss? Young Miss!”

***

‘It’s noisy outside the door.’

The man thought as he stroked his mustache.

‘Well, it’s natural that the atmosphere is chaotic since it’s a family of poor nobles with only its name that is famous.’

Sneering, the man sneaked, looking around.

It was well organized, but it was a shabby office that had nothing expensive.

The most expensive thing here was not an object, but rather—

“…First of all, I don’t see any problem.”

It would be Gabriel Cartier, who was muttering to himself and looking at the forged documents.

“Haha. Of course. In front of whom would I dare put out a strange contract?”

The man smiled sarcastically and secretly glanced at the next Marquess, Gabriel Cartier.

Dazzling golden hair.

Blue eyes.

A solid body that made even frugal clothing look gorgeous.

If he was put on the slave market, he would be a person who’d be able to renew the highest price per night.

‘But more than anything, the most valuable thing on that face is surely those eyes.’

The man smacked his lips without realizing it.

Gabriel’s blue eyes that shone uniquely like jewels.

It was eyes that indicated that he was the ‘chosen one’.

In this world, there were people whose eyes changed into jewel eyes during the Coming-of-Age Ceremony.

[Purple eyes are people destined to be loved by everyone]

[Gold eyes are people destined to be great artists]

[Red eyes are people destined to be either the ruler that will save or destroy the world]

[Green eyes are people destined to raise their reputation through knowledge and wisdom]

[Blue eyes are people destined to surprise the world with outstanding force]

Gabriel Cartier had among those, the blue jewel eyes.

‘After brainwashing him according to Master’s order, I really want to have those eyes in my hand.’

Blue jewel eyes will be sold at high prices on the black market.

Hiding his dark innermost thoughts, the man opened his mouth.

“It’s alright even if you want to look at the documents more, over and over again. Since I can wait right here.”

Of course, it wasn’t because there was no problem with the documents.

It was because it had been manipulated so well.

‘There is surely no way that the novice next Marquess, who has only wandered around the battlefield during childhood with the former Marquess, can find such a thing.’

Mocking him in his thoughts, the man said.

“By the way, I heard that the Youngest Miss had an accident the day she discovered the magic stone mine. Is she alright?”

Gabriel frowned at the words the man brought up to hide his dark thoughts.

“…There were no major injuries, but no matter how I think about it, it seemed like she definitely hurt her head.”

“Pardon? Are you saying her head was hit? Was there any bad sign?”

“She started doing some things she didn’t do before.”

“What kind of things did she do…?”

“I think… Didn’t she suddenly say that she would look at the household’s property details ledger…?”

The property details ledger?

The Youngest who is known for spending the most money in the Cartier Family?

“And didn’t she read a gold magic skill book that she couldn’t even understand all night long?”

A 10-year-old girl reading a gold magic skill book which was hard to understand, even for highly educated people?

“And she also started muttering to herself while looking at the Imperial law book.”

No, I mean, what does a young child know about the Imperial law that she would look at that?

“She also asked to get a map of the continent, and on top of it, she drew some kind of marks on it for a while.”

“….”

As Gabriel continued speaking, his words were slowly becoming like he was talking to himself rather than talking to the man.

So instead of responding to his words, the man was lost in his own thoughts.

‘Did the Youngest Miss who was the biggest pain of the Cartier Marquess Family change?’

For her to look at the Marquess household’s property ledger, read a gold magic skill book, read through the Imperial law book, and even draw some kind of mark on the continental map?

‘Is she crazy?’

“But it was said that she’s not crazy. The Family Doctor said so.”

‘Gasp! My goodness!’

Gabriel said on time, as if he had read his mind clearly, the man freaked out inside.

But he managed his expression casually.

“Even so, it’s a relief that there is no big problem. Hoho. Ah, have you looked through all the documents?”

The man quickly changed the topic again.

He had spent too much time talking nonsense, so he had to work again now.

“What do you think? There is no problem with it, right?”

“…Hm. Yeah.”

“Then, would you like to slowly proceed with the contract?”

“…Sure.”

Nodding, Gabriel picked up a pen.

Thump. Thump. Thump.

“…?”

That’s weird.

His heart, which had been calm while accomplishing every mission so far, was pounding.

As if something strange would happen and things would go wrong.

‘No, there’s no way it’ll be like that.’

Everything was in its place.

There’s no way that something could get in the wa—

“Wait a mwinute!”

Bang—!

“W-What’s this!?”

The man, who was very nervous, jumped up from his seat.

When he saw the young child who opened the door come in, he opened his mouth.

“D-Diana Cartier…?”

That silky silver hair.

Those turquoise eyes reminiscent of a dense forest in midsummer.

Those white and soft pudding-like cheeks.

Thanks to her cute appearance which was like a doll, the man, who quickly recognized the child, was surprised.

Just why was this house’s Youngest in here?

“Article 34 paragraph 1 of the Imperial Law.”

Huh? All of a sudden the Imperial Law?

“A person who has officially reached his or her tenth birthday can claim ownership of the private property that he or she has discovered or acquired, whose owner is unclear.”

The small hand which was like maple leaves, hurriedly threw a document envelope the man’s way.

“Ack!”

The man who had been hit in the face by a thick envelope screamed.

“Wh-what is the mea, uugh….”

While the man was groaning, Diana shouted confidently.

“Acckword, no, ahem. Ac! Cord! Ing! To the relevant laws, I would like to inform you that I have the right to decide on the management of the magic stone mine I discovered a week ago in my family’s territory.”

“….”

“….”

Not only the man, but also Gabriel who had an absurd expression on his face opened his mouth.

“Diana Cartier. Just what are you doing right–”

“Older Brother Gabriel doesn’t know anything other than fighting.”

A 10-year-old child who mercilessly smashed the prestige of the next Marquess in front of outsiders said.

“For Older Brother Noah, as expected, well, I don’t need to say it.”

The prestige of the second son of the family who was not here was also destroyed.

“That’s why, Older Brother.”

Diana, who crossed her arms as if it was, of course, none of her business, said.

“Please entrust this mine to me!”

“No, to think that a mine will be entrusted to a 10 years old child?! What kind of statement even is that—”

The moment the man who couldn’t hold back tried to interfere.

“And also, Older Brother. That person is a fraud.”

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