In the vast empire situated at the center of the continent, numerous noble families existed.

There were Marquis families with long histories and traditions, Count families with superior military power, and merchant families with immense wealth.

And among all those nobles, there was one family that held a special position.

The Yeager Ducal House.

The prestigious family closest to the Imperial Family.

A family of the sword that has guarded the empire's borders for generations, and high-ranking nobles who own vast territories.

The name Yeager was power itself, a name everyone had heard at least once.

However, what has been mentioned most in social circles recently was neither the achievements of the Duke's family nor their political influence.

It was—

The only son of the Yeager Ducal House.

Eren Yeager.

15 years old.

The sole heir to the Dukedom.

Brown hair and clear green eyes.

Despite his young age, there was no one in noble society who did not know of his appearance.

"Have you ever actually seen the young master of the Yeager family?"

"No, but I've seen his portrait. He's impossibly handsome."

"I heard he already gives off such an aura at that age."

The women of high society spoke his name, and whenever a party was held, whether he would attend was always the first topic of conversation.

Some called him a boy as beautiful as a prince, And some described him as God's greatest masterpiece.

But the beautiful subject himself—

Had no interest in such stories.

Eren Yeager never once attended the nobles' parties.

Dancing, conversation, socializing.

To him, it was all useless.

Merely a nuisance that took away his time.

"A party?"

Eren said with a dull expression.

"Why should I laugh and chatter with people I don't know?"

There wasn't a hint of interest in his voice.

Rather, it was full of nothing but annoyance.

And that personality was the complete opposite of his appearance.

Looking only at his exterior, anyone would imagine a kind and elegant noble boy.

But everyone who actually encountered him gave the same evaluation.

The worst.

Cold.

Arrogant.

He doesn't care about the feelings of others.

He must have what he wants, and he discards what he dislikes without hesitation.

The people working at the Yeager estate knew him better than anyone because they saw him up close.

"It seems the young master is in a bad mood again today."

"He's always like that anyway."

The maids feared making even a small mistake in front of Eren.

Because they knew that the moment they fell out of his favor, it wouldn't end with a simple apology.

Since he was a child, he had everything he wanted in his hands.

The toys he wanted would arrive the next day.

The people he disliked disappeared from his sight.

Even when he did wrong, no one properly scolded him.

Because he was—

The one and only heir to the Yeager family.

His parents overprotected him, and those around him condoned his behavior because of his power.

A boy created that way.

Eren Yeager.

A beautiful face.

Outstanding talent.

High status.

But inside, only the arrogance of looking down on others remained.

"His face is truly perfect, but..."

A young noble lady said cautiously.

"His personality is the absolute worst."

Then the person next to her nodded.

"Right. But there are still so many people who like him."

"That's only because of his face."

"But no matter how handsome he is, that personality is..."

The voice trailed off.

Everyone knew.

Eren Yeager was a beautiful monster.

A boy with an appearance that draws people in, and a personality that pushes them away.

And no one expected it.

That into that perfectly closed world—

One person would eventually enter.

Someone who would not obey him.

Someone who would not fear him.

That a being who looks at the human named Eren Yeager himself for the first time would appear.

After that day.

The life of the boy called the brat of the Yeager family begins to change completely.