Chapter 29
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Translator: penny
Chapter: 29
Chapter Title: 4.1 Sister and School Swimsuit, 4.1-2 Sister's Soliloquy
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"Uwaaah~."
This wasn't what I had in mind at all.
After Yuuki bolted out of the room, I collapsed onto my bed, writhing in self-loathing.
Today wasn't about anything special when I brought Yuuki home.
It was just to celebrate wrapping up all the bullying against Yuuki and the rumors swirling around Hina.
Like always, I figured we'd train our skills together and reclaim some normalcy.
'Whether Yuuki's body turned female or she became a glow-in-the-dark dinosaur, nothing's changed between us.'
That's what I wanted to show her by bringing her home.
Who knew things would go south like this.
I wasn't even curious if she wore a bra or something!
Curiosity killed the cat, huh!
What the hell am I supposed to say to Yuuki tomorrow?
As I clutched my head and groaned to myself, noisy footsteps echoed from outside, and my door flew open.
"Naibusu!!"
"Whoa, you scared me."
The person who burst into my room without knocking.
My sister, Naiad Winzer.
Even as siblings, she never just barged in like this.
Was there some emergency?
"Naibusu! Did you... do something to Yuu...?"
"Do what?"
Sis was still in her academy staff uniform, probably heading back from Rune Academy.
Her face looked terribly anxious. Her voice was shaking badly.
Like she'd just learned her sweet little brother was actually a sex offender.
"Ah. No way."
It wasn't like I had no clue.
Just moments ago, Yuuki had run out of my room topless.
Sis must've run into her teary-faced sprint and jumped to some weird conclusion from her appearance.
'No way, Naibusu tried to rape Yuu!'
"Huh?"
Sis! That's too much!
Do you really trust your brother that little?
"...Naibusu, get up. We're going."
"Sis, just to be sure, where are we going?"
"To apologize to Sana and Yuu, obviously."
Yup, called it.
I let out a deep sigh and said,
"It's not like that. It's a misunderstanding, Sis."
I explained everything step by step to clear up her misconception.
"Yuuki said the bandages on her chest kept slipping, so I helped wrap them, but there was an accident midway, and I kinda... touched her by mistake."
"...Get up already, Naibusu."
'He really did it! What's there to misunderstand!'
Even after my explanation, Sis didn't buy it.
Her already cold expression turned even icier. Why?
"I'm telling the truth. Call Yuuki and ask her yourself."
I said it with the most wronged look I could muster.
I get it, though. With three sex offenders executed overnight in the class she's homeroom teacher for, she'd be on edge.
I understand. I do... but I wanted Sis, of all people, to believe in me.
She's my only family.
It stung a bit that even Sis saw me as some pervert.
'Naibusu's face looks so genuinely wronged. It was the same with the bloomers yesterday, so maybe... I should hear Yuu's side first.'
"...Fine. Wait here. I'll make a call."
Sis said that and stepped out to call Yuuki.
'Yuuki might not speak up if she's scared of threats, so I need to ask carefully.'
This is ridiculous! What do you take me for?!
...A little later.
Sis returned from her call with Yuuki and bowed her head in front of me.
"Sorry, Naibusu... Sis misunderstood."
"Told you."
The misunderstanding was finally cleared up.
I breathed a sigh of relief.
"You've been on edge lately... Sorry for suspecting you weirdly."
"It's fine. I get why you'd be like that. Things have been chaotic."
-But I wanted you, of all people, to believe in me...
A casual grumble slipped out without thinking.
"Naibusu... Sorry..."
But those words seemed to wound her deeply.
'Even my only sister doesn't trust me. How hurt must Naibusu be? I'm not fit to be a sister.'
Oh crap. That wasn't what I meant.
"No, no, not like that. Forget I said it. Seriously, don't worry."
I frantically took it back, but words once spoken can't be unsaid.
Sis, already looking worn out, grew even more downcast.
"Uh, um, I'll go wash up first, Sis."
"...Okay."
I jumped up in a fluster and fled to the bathroom.
'Sorry, Naibusu... Sorry for being such a lousy sister...'
Her melancholic thoughts chased after my back.
"Hmm. This is bad."
I muttered absentmindedly under the shower.
Yuuki, Sis... seems like I'm hurting the people around me with needless misunderstandings.
I'm handling the big stuff fine, but making those closest to me sad? That's plus-minus zero.
Regulate the family to govern the state, the saying goes. Time for reflection.
"Phew."
As I shampooed my hair, I thought.
After the shower, I'll talk honestly with Sis and make up.
No good letting this awkwardness drag on.
Yeah. That's the plan.
As I mumbled that to myself,
-Knock knock.
Someone knocked on the bathroom door.
"Naibusu?"
"Y-Yeah? Sis? What's up?"
'It's a bit embarrassing, but...'
"--Wait! Hold on! Just wait!"
Sensing suspicious thoughts from outside, I hurriedly shouted stop, but...
-Click.
The bathroom door opened without fail.
"Naibusu. I'll wash your back."
Shielding my groin with a washbasin, I squinted at Sis.
Was this fortune or misfortune?
Sis was in a Rune Academy high school department school swimsuit, no less.
Bloomers yesterday, school swimsuit today.
Lucky me.
'No need to be embarrassed. He's my little brother.'
...You should be embarrassed!!
No, Sis was embarrassed.
The problem was her squirming bashfully while pretending to be bold and marching in.
'And I'm wearing a swimsuit, so it's fine.'
...It's not fine at all!!
Like the bloomers yesterday, there was no way a school swimsuit from her academy days would fit her body now.
This trash world's school swimsuits clung tight and exposed a lot anyway.
When someone like Sis wore one, well, you can imagine.
Breasts and crotch plastered so tight it was burdensome to even look.
Even she must feel uncomfortable in that. Doesn't she?
"...Sis. I can wash myself."
I closed my eyes and calmly tried to dissuade her.
I'm not a kid anymore; I don't need help showering from Sis.
Plus, being in a sealed space with her in that swimsuit was dealing massive mental damage.
I'm a pure, upright pure love fanatic! I don't touch incest pure love or anything! I won't step on that degenerate path!
--Or so I tell myself, but this body isn't solely mine.
Deep in my subconscious lurks 'the true Naibusu Winzer.'
This other Naibusu is an incest freak, harem junkie, and anal enthusiast. No matter how pure I am, this body won't fully obey. Damn it!
"It's fine. Isn't it nice for family to open up like this sometimes?"
...I'm not fine with it!!
No matter how pure love I am, there's no 100% safety guarantee.
Sis needs to realize how dangerous men can be.
"I feel like we haven't talked enough lately. I've been thoughtless, huh? Sorry."
'Yuuki's issue, Akane too... Naibusu must have a lot on his mind. I couldn't comfort him as his sister; I just hurt him. I'm such a failure.'
"Sis..."
Hearing her gloomy thoughts, I couldn't keep refusing.
"...Fine, but just this once. It's embarrassing."
"Hee hee. Naibusu's shy."
Sis lathered a towel and started scrubbing my back.
I kept my eyes shut, groin shielded by the basin, waiting for it to end.
"The scars are still there. Think they'll fade?"
"Probably not."
As Nanami mentioned before, my body is covered in scars.
Arms, legs, chest, stomach—mostly from the Great Catastrophe.
Sis knew from childhood, so she wasn't shocked.
"Want me to look up a scar removal clinic?"
"Nah. They're badges of honor."
"If you're okay with it... but a girlfriend might not like them later?"
"You don't mind, Sis. So it's fine."
'Naibusu... I wish it was me who got hurt instead.'
What kind of horrific thought is that?
These are medals from fighting to keep Sis safe too.
I wasn't ashamed of a single one.
"Sis, that tickles."
Sis sadly stroked my old wounds.
They don't hurt much anymore, so no need to fuss.
More importantly, time to get out.
Who knows when the incest freak inside me might burst out.
"...Naibusu."
"Yeah."
Suddenly, Sis leaned against my back.
-Thump.
Her breasts pressed softly against my back through the thin swimsuit.
I tried ignoring it, but my nerves zeroed in on the sensation.
"If something tough happens, you have to tell Sis, okay? I'm always worried. You always bottle everything up and handle it alone."
'I know I'm not much support... but I want to help Naibusu even a little...'
"...No big deals or anything. I'd have told you already if there were. You're all I have."
-Smack.
I got whacked on the back.
"Always so smooth-talking."
'Naibusu. Sis is always on your side. Sorry for misunderstanding earlier...'
A bit of warmth returned to her chilly thoughts.
"Sis, let's get out. You'll catch a cold."
"Okay..."
"And watch your step on the way out. You might trip anywhere, anytime."
I advised her while rinsing off the suds with warm water.
Sis in her skimpy swimsuit, me naked with just a basin over my privates—this trash game's trash system wouldn't miss the chance.
"I know! You think I trip everywhere, Naibusu?"
"Obviously. I won't catch you if you fall this time."
But is it really safe to go out like this?
Her bold words felt like a death flag.
One wrong move, and it'd turn into something unfit for even an R-15 novel.
"Nah. Let's hold hands. I'm too anxious otherwise."
I firmly grabbed Sis's hand with one hand.
The other shielded my groin with the basin.
We left the bathroom together.
Thanks to watching every bubble on the floor, no slips happened.
Phew. Close call.
Warm thoughts flowed through our clasped hands.
'Naibusu's hands are so big now. He really feels like a grown man.'
I've been a grown man for ages.
You just didn't notice, Sis.
"By the way, Naibusu, Sis needs to wash up again."
"Huh."
Oh right. Then I dragged her out for nothing.
"Hee hee. Naibusu has his airheaded moments too."
Sis teased me and casually started peeling off her swimsuit.
"Sis! Stop!"
"Huh? Eek!"
I stopped her quick, but one shoulder strap was already down.
...Who’s the airhead now?!
Who really has loose screws?!
In a certain lab in the Rune Academy's restricted zone.
The place where Naibusu once took down a pervert and saved Teacher Akatsuki.
A man and woman in gowns splattered with dark red liquid bustled about.
On the operating table in the center writhed something unrecognizable as human, corpse, or doll.
"Th... ugh... uh... me..."
The corpse—no, doll—let out incoherent groans.
The man in the gown glanced at the grotesque doll and spoke to the woman.
"Doctor. When's a proper corpse coming? This trash won't even work for experiments."
"Naib... us... die..."
The woman called Doctor ignored him, continuing to slice into the doll.
"Got a young one lined up. Negotiating with the parents now."
"For real?"
The man brightened at her words.
But his face soon clouded.
"Parents hand over a young corpse? Even if dead, it's their kid."
"They will. They're asking an absurd price, that's all."
"Heh. Greedy parents."
"Gotta earn somehow, even from a corpse."
"True. Corpses don't feed themselves."
"Ugh... uh..."
"Attach it there."
"Got it."
He fitted a small gem-like stone into the severed arm and pressed the stumps together.
"Move the arm."
"...Uh... th..."
The man stabbed the reattached arm with an awl.
The arm, which shouldn't move, twitched.
"Surprisingly simple."
"Who'd guess this use."
"Doesn't work on normal corpses. Rune Holder bodies aren't easy to come by."
The man muttered happily at the success.
"...Uh... ma..."
Rest still eludes the dead.
4.1-2. Sister's Soliloquy
"Sigh..."
Naiad sank into the warm bath with a sigh.
'I showed Naibusu...'
She recalled the moment she accidentally bared her chest in front of her little brother.
Just moments ago.
In the changing room after scrubbing Naibusu's back, Naiad had mindlessly started removing her swimsuit.
She'd hastily put it back on, but...
'Naibusu definitely saw. What did he think? Maybe it's too big and gross...'
Naiad felt her chest tighten.
Naibusu had left like he didn't care, but...
He might've been disgusted by her un-sisterly, pathetic sight.
'Why am I always so clumsy around Naibusu!'
Naiad vented her frustration inwardly.
She often tripped or embarrassed herself around him anyway.
That's why she'd been so careful in the bathroom.
But the moment they stepped out, her guard dropped, and she caused that blunder.
Naiad couldn't stand how pathetic she felt.
'He must think I'm a lame sister. Aah~.'
Naiad sighed, drooping her head.
She climbed out of the bath dejectedly and began washing.
She bared herself before the large bathroom mirror.
Large breasts and hips rare for pure East Asians, and skin so white it hurt the eyes.
Naibusu got bullied for being mixed-race, but Naiad had endured plenty thanks to her looks too.
Some women envied her appearance, but she'd often wished they could swap.
"Phew."
She lathered her hands and rubbed her body.
Her soft flesh deformed under her touch.
Her oversized breasts easily trapped sweat underneath.
As she washed under them with soapy hands, Naiad suddenly noticed her heart racing.
'Naibusu...'
Tracing the cause led straight to Naibusu's naked body in the bathroom.
Her little brother Naibusu Winzer, who had become a man unnoticed.
Slim yet toned muscles. Broad back, large rough hands.
Naiad realized it fully.
Naibusu was no longer a child, but a man.
She hadn't seen between his legs—he hid it diligently—but it must be manly too.
Naiad felt her face heat up.
'Heavens. What am I even thinking?'
She shook her head to dispel the stray thoughts.
But the flame on her chest wouldn't extinguish easily.
"Naibusu..."
His name she called daily, his face she saw every day.
Yet today, it felt strangely special.
She pictured his scarred back.
How much it hurt, how tough it must've been.
Usually, pity was all she felt seeing it.
But not today.
Her fingertips tracing the scars burned hot.
'I shouldn't... Ah...'
Zing.
Her fingers brushed between her legs unwittingly, sending an electric jolt.
Fantasy unfolded in Naiad's mind.
-Sis!
Naibusu, who had been docilely offering his back, suddenly turned and hugged her.
'Naibusu, no. I'm your sister. We're family.'
Naiad panicked at her brother's sudden action but tried calming him.
Yet his firm body clung without release.
-Sis, I can't hold back anymore...
Naibusu confessed tearfully.
Something a woman wouldn't have pressed against Naiad's stomach.
-Seeing you, Sis... it got like this...
Naibusu revealed his large, hard manhood to her.
Naiad's mental database had no data on grown Naibusu's organ.
Just basic anatomy and the feel from when he'd poked her butt in that recent incident, combined into an image.
-I don't know what to do...
Thus, her imagined Naibusu manhood was just the childhood version, scaled up.
"Ah...!"
'Aah, poor Naibusu...!'
Big in body, but in her mind, still her little brother.
Naibusu at a loss, panicking.
As his sister, Naiad had to solve his problem.
Her sense of sisterly duty ignited.
'Don't worry, Naibusu. Sis will... take care of it somehow.'
-Aah... Sis...!
Naiad caressed his manhood with vague knowledge.
Naibusu trembled, accepting her touch.
'It's okay. Trust only Sis.'
"Hee hee."
Naibusu is cute too.
Naiad smiled maturely, pampering it sisterly.
But.
-...Sis!
Naibusu couldn't contain his lust and pounced.
'Ah... no! Naibusu!'
Naiad tried pushing away in panic, but he was no mere boy—a man.
A woman like her couldn't overpower him.
-Sis! Sorry! Sorry, Sis!
'Naibusu! No! I'm your sister! We're family!'
"Naibusu... no... Ah...!"
But her desperate pleas didn't reach the aroused Naibusu.
He overpowered and pinned his sister.
No rationality in his eyes.
-Sis, sorry! Sorry!
'No, Naibusu! No!'
"Ah... Aah... Naibusu, no..."
Naiad moaned under her fantasy Naibusu.
Meanwhile.
Naibusu in his room was tearing at his hair over Sis's thoughts leaking through the thin wall.
"Sis... what the hell are you imagining..."
He rolled on the bed in agony.
No one was there to hear.
Through the thin wall, Naiad's fantasy raged on.
-Sis! Sorry!
'Aah! Naibusu! Stop!'
Naibusu tore her swimsuit to shreds wildly.
Her feeble resistance was no obstacle.
Naiad's swimsuit shredded instantly, scattering on the floor.
'Aah!!'
Finally fully naked before her brother.
She covered breasts and crotch with arms, but Naibusu pried even those away.
-Sis, Sis!
'No...!'
Naiad scooted backward desperately on her butt.
Naibusu pounced frontally.
-Haat!!
'Aah!!'
"Aah...!!"
Deflowering pain, they say.
The tearing agony made Naiad hold her breath.
'Naibusu... It was Sis's first time... Sniff.'
Blood between legs, tears in eyes.
Seeing her, Naibusu finally snapped back.
-Sorry, Sis... I couldn't hold back for a second...
Naibusu teared up in guilt.
Naiad maturely wiped his tears.
'It's okay. But don't do this to other girls. Got it?'
Crying yet firm, the sister scolded.
Naibusu hugged her gratefully.
-Yeah... I won't. Sis is all I need...!
'Aah, Naibusu...!'
The sister gently hugged back at his shy confession.
-Sis, Sis! Sis!
'Ugh, uh, uh...!'
Aroused Naibusu thrust wildly.
-Pang! Pang! Pang! Pang!
Manga-like sound effects as his hips slammed hers.
Naiad endured the tearing pain hugging his firm body.
Painful, agonizing, but okay.
For Naibusu, Sis could bear it.
In fantasy, she was the mature sister sweetly accepting her little brother's beastly urges.
"Ah, aah..."
In reality, Naiad's hand moved faster.
Fingers that had gently stroked her slit now rubbed roughly.
Back against the wall, legs spread wide, her slender fingers relentlessly worked the delicate cleft beneath golden pubic hair.
Naiad Winzer, usually the cool teacher mask.
But alone (or so she thought), she unleashed 120% desire.
'Aah...! Naibusu!'
Fantasy Naiad writhed in pain from forceful entry.
Real Naiad writhed in pleasure.
"Naibusu, Naibusu... Aah...!"
-Sis! I'm about to come! Sis! Sis!
As real Naiad neared climax, fantasy Naibusu neared ejaculation.
-Sis! Bear my child! My child and nephew!
"No! Naibusu, no...! At least outside...!"
Overexcited, borders blurred; Naiad voiced aloud.
-Sis! Cumming! Aah──!!
Fantasy Naibusu thrust to pierce her womb and ejaculated.
Naibusu's baby batter filled Naiad's womb.
Hot sensation spread from deep in her belly throughout.
"Hng! Hnggg──!!"
Real Naiad shuddered in deep climax.
Hand over mouth just in time blocked the sound.
...Not the thoughts, though.
"Huff, huff, huff...!"
Intense orgasm swept her.
Naiad trembled in afterglow.
Legs gave out; she slumped to the floor.
'Aah... Naibusu... I said outside...'
To her pitiful, teary sister, the brother declared apologetically yet manly.
-Sis. Sorry. Felt too good to hold back. But if there's a kid, I'll take responsibility.
'Naibusu dummy...'
"Haa, haa, haa... Naibusu, dummy... You better take responsibility..."
Exhausted Naiad smiled sadly yet satisfied.
...At the same time.
Sis had no idea Naibusu was rolling in torment next door, clutching his head.