I really don't want to be reborn.

He smiled, then held his sister's head still and began kissing her lips. It felt like an orange that had been bearing fruit since it was a child could finally be picked and juiced.

My little sister is as sweet as orange juice.

Before the sweet and ambiguous atmosphere could even take shape, her younger sister kicked her off the bed. Kirino opened her eyes wide, panting, her gaze darting away.

"Go rinse your mouth!"

She awkwardly huddled back under the covers, curling up into a ball.

Her brother was no longer a virgin, and his kissing and fingering skills were so proficient that she was completely bewildered, her desire overflowing.

She sobbed angrily. After her brother left, she wavered between desire and reason, but reason, like her intelligence, was often not online.

With teary eyes, she hugged the blanket that still smelled of her brother and began to rub against it, following her desires.

They are not lovers, nor are they romantic partners.

They are siblings.

For a long time to come, they'll probably continue to interact like this.

As always, there wasn't much of a sweet feeling.

However, there are some differences.

------

When you think I've stood you up, but I haven't, that's also a kind of "dove philosophy."

Cuckoo.

In the extra chapter, everything was finally there in the dream.

My name is Kirino Kousaka.

My younger sister is an all-around athlete, an excellent student, and has a pretty face...

Well, the reason I paused a bit during my self-introduction is because I, who was supposed to be his sister, was taken home two months ago and forced to become his temporary girlfriend.

Brief and temporary—that was his real girlfriend's suggestion. You know how subtle it is to be easily defeated by an opponent and then treated with pity, like being given a bone to lean on?

Oh, don't think of your girlfriend as something so important.

What's higher in status than a girlfriend?

fiancée……

Okay, Kasumigaoka Utaha, that woman, has won again.

I am now in the rest room of the hot spring, completely naked, my body stretched out, like a clove of garlic that has been smashed, letting the wind from the electric fan heal my body and mind.

I hope no one saw how disheveled I looked, completely disoriented from soaking in the hot spring.

However, I still hope that my brother will suddenly barge in or something, like the kind of plot in an erotic game.

If it unfolds that way, then...

"I have no regrets in my life... Ha."

"Ha...you showed me a truly horrific sight."

Someone pressed something cold against my face, and when I turned around, I saw the simple figure of a black cat wearing a yukata.

It's as plain as the Fallen Beast, with a shabby style and not even a hint of color.

"If your brother saw you like this, no matter how much he loves you, he would feel disgusted."

"Then why not just make him fall in love with me again?"

The black cat sighed, looking dumbfounded, and then handed over a can of chilled green tea and a bath towel.

Glug glug glug...

"Where are Tamaki and Hinata?"

"...I was so scared of you, you pervert, that I ran away."

I felt a little embarrassed: "Were you scared by how I looked when I was soaking in the water?"

The black cat looked at him like he was trash: "Don't you realize? Tamaki ran away for a reason."

She sat down next to me: "Kirino... I'm very grateful that you're willing to get closer to my two younger sisters."

"Ah."

"But Hinata is one thing, but Tamaki is shy. Please be more careful in how you treat her, don't be like your brother."

Her eyes darkened: "A child fetishist deserves to die a horrible death!"

We're on vacation now, a group of us, including my brother's fiancée and her sister, but it's still a man leading a group of women.

Wow, the scene of the imperial harem going out is so spectacular.

I sleep with Black Cat at night. Besides not wanting to hear his and his fiancée's voices, I also have a lot to say to Black Cat.

We returned to the room, and before we even entered, we heard my brother's screams as Shino beat him up.

"...Is that guy alright?"

"How many times have you said that?"

The black cat sighed and asked me, while Tamaki was sleeping peacefully beside her, snoring away.

“From that day on, Shino treated him very badly, and her face was bruised and swollen. Every time I saw him like that, I felt it was my fault.”

That's enough! It's so annoying!

That kind of guilt!

The black cat probably sensed what I was thinking and said with an infuriating expression, "I've already incorporated your theme into my manga. The devil's sister conquered Shosuke with her violence, while Tono was completely unaware of it and acted like a fool."

"..."

I know the black cat has a problem with me.

"Black Cat, you have a problem with your judgment. Shino doesn't seem to like her brother."

"Liking is a very superficial thing."

As the black cat stared at the ceiling, I vaguely sensed that her views on love were terrifying, unlike the bluffing of a typical teenage girl.

It should be called yandere. If Kuroneko confirms her love, it will be a straightforward and self-sacrificing love, as if she is willing to invest her entire life in it.

Could I really be that desperate for love?

Will it be like when you're on a train, hearing the clanging sounds outside the window—as if someone is nailing the window shut, but you don't care at all?

"So, Kirino, are you sure about your feelings now?"

"Ah."

I've known for a long time that, from initially denying it to later being too afraid to admit it, I went through a very foolish period, constantly taking detours and just missing out on the other person.

If you think about it carefully, he was clearly always by my side.

I just don't understand it myself.

If you can't understand his feelings, you'll naturally make many mistakes and waste your energy: "You have to see the real him carefully. I don't really care about his identity, but I can't stand the kind of expression my brother sometimes shows."

That expression of indifference towards the world is neither related to anyone else nor to any particular temperament.

But both I and Kasumigaoka are quite certain that my brother harbors a deep-seated malice towards this world.

Sometimes I just want to be an invincible fool, unwilling to know my brother's worries, unwilling to feel heartbroken because of that expression, because I can't help but cry every time I see it.

He was just spacing out, why am I crying?

I am a completely useless person.

I'm sorry, I embarrassed myself.

But I'm still not reconciled... I'm really not reconciled. As his closest person and the person I've spent the most time with, why don't I even know what he's thinking?

The paper door to the room was pulled open.

"Kousaka-nii is so cool!"

Hinata, dressed in her pajamas, ran in, breathless with excitement.

"Ruri-nee! Kirino-nee! Taka... Kousaka-nii, I was initially laughing at him, but he's actually super cool!"

"Uh-huh?"

Hinata opened her arms wide: "What's wrong with that person! Does he want me to fall for him?! Waaah..."

"Hyuga, be quiet."

"This isn't the time to worry about that! This is bad! This is really bad for Kosaka-nii!"

What's up with him?

I casually asked the excited Hinata, "Isn't your brother with them? What did they talk about that made you so excited?"

"Listen to me, listen to me! He said Sister Liuli—"

"You don't have to say it, Hinata."

The black cat decisively stopped Hinata's sister, who was itching to reveal the secret.

"Why, Sister Liuli?"

"Because...because even if you don't say it, I probably know what that scumbag will say."

How does the black cat know so much about my brother?

I gave her a suspicious look, then got out of bed and pulled Hinata aside: "Just tell me."

"Yes! He said Sister Liuli—"

The black cat meowed, "Hinata—if you like carrots and green peppers so much, do you want me to feed you them every day?"

Hinata, with her pigtails, was terrified: "...I'm sorry, Kirino-neechan."

Hinata, whose stomach had been taken hostage, easily gave in.

However, even though the brat gave in, he still teased her back: "Sister Ruri, Sister Ruri, if Brother Kosaka cheats on you, will he come looking for you?"