While Taking Care of My Shut-In Little Sister, I Somehow Ended Up Ejaculating Inside a Beautiful Girl

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Chapter 129: Choices While Aniki’s Away (5) [Third Person]

That night.

Knock, knock, knock.

The ceiling light illuminated the second-floor hallway of the Hoshimiya house, the sound of knocking echoing.

“Shiori-chaaan, let’s have a little talk~”

Knock, knock, knock.

The door was struck.

Repeatedly.

“Hey, hold on, Yuu-chan…!”

Yakko, behind Yuu, tried frantically to stop her relentless knocking on the “locked room” door.

“Shiori-chan, huuurry~”

But Yuu wouldn’t listen.

She kept knocking, waiting for a response.

“Shiii-oooriii-chaaan~”

Yuu called out.

“I know you’re in there~”

“—”

“…If you keep ignoring me, I’ll kick this door down.”

“…”

Well, Yuu might actually do it.

And since she might, the room’s occupant had no choice, it seemed.

Click.

Creak…

The door opened.

“—You’re really annoying.”

A faint, small voice.

So delicate it could vanish, yet strangely lingering in the ear.

“Huh…?”

“Oh, you’re coming out normally today.”

Yakko’s surprise and Yuu’s impressed tone met the figure at the door.

The “locked room,” which never opened, did, revealing its occupant.

“Why are you so barbaric? You’re supposed to be someone Aniki acknowledges, but I can’t see your appeal at all…”

Step.

A presence emerged into the hallway, silent as a fairy tale sprite.

Ethereal, otherworldly, exuding an enigmatic aura.

“Pretty good for a hikikomori~”

“Hikiko—huh!?”

Yuu’s emphasized introduction made Yakko’s eyes widen at the figure.

“No way… no way… seriously…!?”

The person wore soft, fuzzy wool-knit pajamas in pale green—shorts and a short-sleeved top, adorable yet elegant.

Long, slender limbs extended from the outfit, skin so white it reflected the hallway light, flaunting flawless complexion and grace.

“No way… no way… impossible…!?”

Yakko doubted her eyes, as if meeting someone from another world.

The figure flashed a soft smile, then—

“Nice to meet you, Yakko Tsukimi-san. I’m Shiori Hoshimiya. For now, I share the same family registry as Ren Hoshimiya—Aniki. Currently, I’m his little sister.”

Her introduction was theatrical.

“Huh…!? This is Ren-kun’s… sister!?”

Silver hair, emerald eyes, porcelain skin. A delicate frame, movements so graceful they captivated.

A peerless beauty who stole the eyes and hearts of all who saw her—Shiori Hoshimiya stood there.

“Yakko-san, thank you for always looking after Aniki.”

“Oh, uh, thanks for the politeness…”

Shiori and Yakko bowed slightly.

Shiori’s every gesture embodied “beauty,” making Yakko shrink back, watching cautiously.

She didn’t even notice Shiori calling her by her first name.

Meeting Shiori’s gaze, Yakko blushed and looked away.

“(Whoa… incredible…!! Yuu-chan, Yuu-chan! Ren-kun’s sister is insanely cute!!!!)”

Yakko tugged Yuu’s pajama sleeve, whispering excitedly.

Shiori Hoshimiya—Ren’s sister—stunned her with her unexpected appearance.

Her beauty charmed even fellow girls.

“(Hey, what’s the deal!? I heard she was a hikikomori! She came out so easily!? Why!?)”

“Tsuki-chan, you’re kinda loud…”

Pushing Yakko aside, Yuu faced Shiori.

“But really… when Ren-chan’s not around, you show up so easily, don’t you, Shiori-chan?”

Yuu’s expression hardened, staring Shiori down.

“Did you… put Aniki to sleep or something?”

“Who knows? Maybe he’s watching us from the stairwell right now.”

Neither Yuu nor Shiori averted their eyes, exchanging calm words.

“Aniki wouldn’t sleep with guests here. Drugs, or something similar? Yakko-san’s here, so not the former… Your specialty, hypnosis, Yuu-san?”

“Hypnosis!? I knew it! I knew it…!”

Yakko, hearing her suspicion confirmed, snapped her gaze to Yuu.

“…”

Yuu hadn’t revealed how Ren slept and had no intention to, but she gave Yakko an exasperated look.

“It’s trivial why Ren-chan’s asleep. More importantly—”

Yuu narrowed her eyes at Shiori.

Shiori’s emerald eyes met Yuu’s dark abyss unflinchingly.

“Bringing Yakko-san here… was it to check me?”

“…”

Shiori, unshaken by Yuu’s bluffs, read the situation with chilling STI accuracy.

Her mentality—near perfect, if not for her twisted nature. If she weren’t so warped, Ren would’ve been hers alone in no time—Yuu’s grandiose frustration. She’d blame Shiori for all of Ren’s family discord.

As if seeing through her, Shiori smirked sharply.

“Why not be honest? ‘You’re in my way, so disappear.’”

“…I don’t like you, Shiori-chan.”

Yuu partly admitted.

“But if something happened to you, Ren-chan would be devastated.”

“…”

Yuu’s stance—prioritizing Ren’s feelings—held firm.

She’d discard everything else but wanted to preserve what Ren cherished.

How did Shiori see this perfected kindness, this relentless love and desire?

“…You make me sick. Truly nauseating, Yuu-san. You’re always in my way.”

“Mutual, don’t you think?”

Yuu and Shiori.

Ren’s lover and stepsister.

“Your little girlfriend act’s lasted long enough. Aniki will tire of you soon. I’d suggest leaving before that.”

“Sorry, but I’m not becoming Ren-chan’s ex.”

Neither backed down, refusing to yield.

A clash of accusations, a battle for one man.

“Uh… um, guys…?”

Yakko could’ve stayed silent, but her stomach churned, so she tried to mediate.

“—Someone like you doesn’t deserve Aniki.”

“And you do, Shiori-chan!?”

“Eek!!”

Yakko’s attempt backfired, their voices growing louder, crushing her mediation. She shrank back, trembling as they argued.

“Shiori-chan only hurts and troubles Ren-chan. You don’t deserve to be by his side.”

“No qualifications needed. I’m family.”

“Family doesn’t get a free pass. You need to care for him, truly value him. You’re leeching off his kindness, hurting him. Stop it.”

“Without you, Aniki wouldn’t suffer. Letting strangers in, getting tangled in their mess.”

“Numbing your heart in pain isn’t love—it’s dependence.”

“Don’t you make him dependent too?”

“There’s good and bad dependence. Don’t you know? You’re smart but so clueless. Ren-chan and I draw endless strength together. You just take from him—”

“What are you saying? I’m his reason to live. You don’t understand him at all—”

Yakko’s mediation only escalated their volume, backfiring completely.

She shrank further, overwhelmed, looking down.

“—Pull your hands off Ren-chan. Stop chaining him to this hell. You’re making him miserable.”

“You’re making him miserable. Aniki wastes away outside a closed world. You let him hope, then despair. Such a lovely personality.”

“That’s you. So insidious.”

“Right back at you. How long will you chase Aniki? Stop playing girlfriend and grow up.”

“You need to grow up—!”

“No, you do—!”

It heated up.

“Awawa…”

Yakko didn’t want to feel responsible, never imagining her friend and this stranger could clash so fiercely.