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I became the younger brother of the Yandere heroine.

I found myself reincarnated into a video game where all the heroines have Yandere tendencies, meaning they become dangerously obsessed with their love interest and resort to violent and psychotic behavior. However, I am not the love interest of any of the heroines. Instead, I am the younger brother of one of the heroines, who in the game's ending, becomes a ruthless killer, targeting and killing her own family in a fit of jealousy and possessiveness. Knowing the fate that awaits my family, I must find a way to stop my older sister from becoming a Yandere and killing everyone. However, this is easier said than done, as Yanderes are known for being extremely difficult to reason with and often resort to violence at the slightest hint of betrayal or rejection. I start to investigate my sister's behavior and try to find out what triggers her Yandere tendencies. I also try to build a strong bond with her and make her understand that our family loves and cares for her. Along the way, I encounter the other heroines, who all have varying degrees of Yandere tendencies and may either help or hinder my efforts to save my family. As I delve deeper into the game's world and unravel the secrets behind the heroines' Yandere tendencies, I must tread carefully and make difficult decisions that could determine the fate of my family and the game's world as a whole. Will I be able to save my sister and my family, or will I fall victim to the Yanderes' twisted love? N/T: This is not my own novel or translation. I am currently machine-translating the novel, so please do not expect a flawless translation as I am using Google Translate.

Dwaystowniessr · ファンタジー
レビュー数が足りません
6 Chs

Chapter 1: First Flag

"Ouch~"

My cheek stretched, and I felt a tingling pain.

"Don't pinch."

"Are you awake now?"

Kim Ha-yan, who pinched my cheek lightly, smiled brightly and stroked my cheek with her hand.

"Ughh... Do not stroke it."

"Hehe, what a shame."

"Why is my sister here?"

"Our Taeyang has to wake you."

My older sister, with a kind smile, Kim Ha-Yan

White skin in contrast with long black hair

Her red eyes, like her hair, are warmly looking at me, and there is a charming point on her lower cheek.

In addition, a pretty nose and charming pink lips

If I had to mention her body, the big breasts would be satisfied.

Even I, who have the memory of my previous life, if someone asked me if my sister was beautiful, she was undeniably beautiful.

The problem is when I look back at my past life...

Same.

It matched perfectly with the heroine of the last yandere game I played, 'Kim Ha-yan.'

"Okay, let's eat and go to school. Since it's your first day at school, too, your sister will decorate you handsomely."

I nodded and sent my sister to go down.

"Haa~ Let's organize our thoughts for now."

Without getting up, I leaned against the wall of the bed.

"So my sister, who has always been with us, will kill us later?"

It's been almost 16 years since I lived with Kim Ha-yan.

In the meantime, I know an older sister who is kind, family, and good, like Kim Ha-yan.

If they're siblings, and if they're only two years apart, they're bound to fight often.

But my sister and I hardly ever did that.

If I, who was less mature, was greedy for something, my sister just gave it to me, and if I took away food, she gave me more or even cooked it for me, saying that it was my favorite food.

My sister once cried because she was mischievous.

After that day, feeling guilty, I also decided to be nice to my sister.

So I don't understand

How could an older sister, who is kinder to her family than anyone else, do such a thing?

It's family; let's believe it once.

Unlike my previous life, where I only saw her through games, now I experienced it in my own life.

I brushed off my anxiety and headed to the living room.

Because nothing is happening right now.

"It's toast."

"Yeah, I don't have any ingredients at home."

"It's okay because my sister's toast is delicious."

I sat across from my sister at the table.

When I give her a compliment, she smiles brightly.

Maybe it's because of the memories from my past life, so I look prettier.

"Is it really good?"

"Huh. My sister always takes care of it, so you should eat it deliciously."

My mother goes to work early and leaves late in the evening, so my older sister always cooks for me.

Don't complain about the side dishes, but be thankful and eat them.

"Oh, my Taeyang said all those things... "

Admired, the older sister pretended to wipe her tears, saying, 'Our Taeyang is all grown up~.'

I'm so impressed...

Such a tender and kind older sister, but she goes and becomes a yandere killer later?

Absolutely not.

Convinced again, I put the toast in my mouth.

"Taeyang, you know what?"

"Huh?"

I stopped eating my toast for a moment and looked at my older sister.

Looking at me, my older sister smiled and wiped the jam from my mouth.

"I heard from the news today that there are more than 7 billion people living on the planet we live in."

"Huh... "

"Then, the probability that Taeyang and I become the same family is about 1 in 7 billion, right?"

"Is it?"

"Hehe, because it's like this, it's like fate."

No, bitch!

Those are the lines Kim Ha-yan says to the male protagonist Seonwoo at the end!

Thanks to that, the toast that had crossed the esophagus seemed to have stopped in the middle.

I drank milk in a gulp to soothe my clogged stomach.

"Ah, spilling again... Because I can't wait."

'It's just that my hands are shaking because I was agitated by what you just said.'

I can't say that.

I refused my sister, who was trying to wipe it, so I wiped it myself.

I'm not a kid. How long are you going to do this?

The meal, which made me feel awkward by myself, was over.

"Come on, wash up. Because your sister will comb your hair."

"... Sister?"

"What?"

"Sister... Aren't you going to kill me?"

"What are you talking about, Taeyang?"

Oops, the rest of my anxiety brought out my inner thoughts without realizing it.

My sister let out a blank laugh as if it was absurd.

"If you don't wash quickly enough, I will kill you if you are late for school."

"Hee-"

My older sister said it with a playful laugh, but I couldn't take it as a joke, so I hurried away.

———

My reflection in the mirror was still the same.

Natural blonde hair.

Natural dark skin.

It contrasts with my older sister, who has dark hair and white skin.

For reference, siblings are correct.

It's just that I received my father's genetics, and my sister received my mother's genetics.

Until yesterday, I didn't attach any special meaning to this appearance.

Sometimes, when my friends get a girlfriend, I just don't understand why they strangely avoid me or try to hide their girlfriend.

It was only when the memories of the previous life came back that I could understand their actions.

My older sister Kim Ha-yan's younger brother, 'Kim Tae-yang,' is a gag character the production crew deliberately created.

Just from existence to the users

A character who hears, 'This guy looks ominous, haha does the game even has an NTR ending?'

It is being used as a meme in the Love Chain game gallery.

Even in the game, there is a mention that he is likely to steal his girlfriend just because of his appearance, and even the male protagonist 'Choi Seon-woo' is wary of me in Kim Ha-yan's route.

Actually, I've never thought about stealing a woman.

What do you do by stealing someone else's lover?

"How long will Kim Taeyang procrastinate?"

As I was staring at the full-length mirror, my sister urged me to come back to my sense.

"Oh, sorry."

My sister caught me for a while, and I was released after touching my hair here and there.

Thanks to that, I go out the front door with my older sister, wearing a bag, with my hair neater.

"Do you know the way? Sister can help you."

"I'm in my 3rd year now too. How long are you going to take care of me, sister?"

"Then you should start growing taller."

My older sister smiled and said.

It's a pretty smile, but still, it makes me angry, but it doesn't come out.

Just like my sister said, right now, I'm looking up at her face.

I'm only about as tall as my sister's chest.

Because I'm still growing.

By the way, this is not my wish. If this world is in the 'love chain' game, then in the future, I'm taller than the Main character.

In the game, when the character 'Taeyang' was in middle school, he was almost a shota character, but after he went to high school, his height grew rapidly.

His body became better than the male lead, Seonwoo, and around that time, Seonwoo started to be wary.

At that time, it was really Golden Sun (NTR) mode.

Anyway, as a result, if I had talked about height until yesterday, I would have been angry, but now it's okay.

"Hmm?... "

When I didn't respond, my sister was puzzled.

"It's okay, let's go to school quickly. If I'm late, they say they'll kill me?"

"Ah, it was. It will be difficult if Taeyang dies, so I have to go quickly."

My older sister makes a bright and scary sound.

After crossing one of the first crosswalks that came out together, they parted ways.

The middle school I am going to and the high school, my sister, is going to are a bit far apart in the opposite direction.

———

"Haa~ I'm going to die of anxiety."

I'm dying of anxiety while walking down the street.

If it is true that I entered the game, today is the first day of the transfer...

The male protagonist Choi Seon-woo and my older sister Kim Ha-yan meet by chance.

Seon-woo finds a small accessory that my sister dropped while bumping into it by mistake, and in that situation, my sister likes him.

I have no intention of interfering with someone else's relationship, but the story would be different if my life depended on it.

A warm day at the beginning of the first semester when cherry blossoms are in full bloom.

On the contrary, my body temperature is dropping due to chills.

After much thought and thought, I stopped.

"Ha... Let's fucking go."

That's the only way.

I turned around and ran straight away.

———

I know roughly the location of the school my sister attends.

I guessed the buildings around the way to school while clearing the pre-run a few times.

Of course, I only saw the way to school from the male protagonist's point of view, but the road is simple, so I'll be able to find it even where we parted ways.

Please don't meet him yet

Please...

I ran away, praying earnestly.

"Ah, I found it."

As I entered a residential area dotted with alleyways, I saw the back of my sister.

Fortunately, it seems they haven't met yet.

But it's scary to find it, and you can see the alley in front of you where you collide with Seon-woo.

We have to stop it before it gets there!

I ran over and grabbed my sister's arm without thinking.

"... Uh, Taeyang?"

"Huh... Huh... "

"What? I thought you were going to fall! What's the matter?"

Well, it's surprising when someone suddenly grabs your arm from behind.

My older sister looked around while saying that she was in trouble.

And after that moment, I saw the figure of a man wearing the same school uniform as my sister in the alleyway.

"Oh! What?"

"That, sister!"

My sister looked at the man and pulled his arm.

Thanks to that, my sister's gaze turned to me, who held her arm.

"Taeyang, what's wrong?"

A man snoops this way.

Damn, I need to get my attention back soon.

"You know... That... I don't know the way."

"What?"

Ha, it's really the biggest humiliation of my life.

"Can I go with you, sister?"

"You said that I could go alone... Your age."

"you can take me... Can't you?"

I begged in the most childish voice possible.

I really hate what I'm doing, but I have to put up with it.

My sister looked at me in trouble and let out a deep sigh.

"Anyway, let's go. Instead, I won't really forgive you if you are late."

"Huh!"

I smiled and nodded my head innocently.

Holding my sister's hand tightly, I turned to middle school.

Phew... Fuck yeah, it's better than dying.

Having to go to school hand in hand with my older sister because I'm in my third year of middle school and I don't know the way, I'm ashamed to look around, but it's actually better than dying.

"I see."

My sister suddenly laughed to herself and nodded her head.

"Ogugu~ It was difficult for Taeyang to go to school alone, so he wanted to go with his sister~?"

"Stop."

"It can't be helped. Taeyang is still young, so hold hands tight. I will protect you."

Just die?

Would it be better to die?

If you're going to be treated like an infant like this, would it be better to kill that man named Seonwoo right now?

Hu~ Let's keep our reason.

I turned away with my flushed face and pulled out my hand.

"I can go alone from here!"

"What? I'll just accompany you to the school gate. It'll be troublesome if you come back blindingly again."

"Go... You can go! It won't be like this anymore."

"Hey~ Really?"

You're totally kidding me

I didn't know that I would come back like this because I usually pretended to be an adult.

"Ji... Really? And sister, you shouldn't be late either. I'll go."

"There is still time... Oh, Taeyang!"

Ran straight back.

Still, I pulled the first flag with this.

I wish I wouldn't get close to Seonwoo through this incident.

Feeling ashamed and relieved at the same time, I ran away.

However, the running steps stopped after only a few steps.

"Uh? You... "

It was because a woman wearing the same school uniform as my older sister appeared facing us, and she pretended to know us.