When I Comforted My Sickly Stepsister, She Couldn’t Live Without Me - 09 - Rampaging Little Sister Monster

“—Nii-san is mine alone!!!!”

Voice similar to Yukine’s scream echoed in my room.

Yukine was glaring at me and Imari, looking like a demon incarnate.

“Hey, Yukine? What’s wrong?”

“Nii-san is way too infatuated with Imari-san! Even though I’m here… I-I’m not enough?”

“What are you talking about?”

I’ve never seen Yukine like this before.

As I was flustered, Yukine continued.

“I-I know Nii-san is a pervert, and that’s unavoidable but… but! It’s not okay for him to relieve his sexual desires with other girls besides me!!”

“What are you seriously saying? Also, I’m not particularly a pervert!”

“Well, I think Miyoshi-kun is a perv? He often ogles my chest.”

“Nii-san!!”

“O-Oi Imari, stop it!”

Being cornered like this makes me extremely uncomfortable.

Or rather, why am I being blamed for this now?

…Could it be that I’m being accused of being a perv?

In that case, I should clear my name.

“So, I’m telling you, I’m not a pervert!”

“But you are! I know! Nii-san, sneaking around alone on the bed late at night…”

“Hey, hold on! Don’t say any more! And Imari, stop making that face!”

“Miyoshi-kun… You’re a boy, so it can’t be helped, right?”

“Ugh!!”

While covering her chest with her arms, Imari said.

With Yukine’s words, the being-a-degenerate suspicion was undoubtedly confirmed.

As I sighed in disappointment, Yukine approached me.

“It doesn’t matter if Nii-san is a pervert! What I want to say is, even though you’re my Nii-san, why are you getting aroused about Imari-san?”

“I-I’m not getting aroused…”

“That’s a lie! You’re aroused!”

“Ugh…”

Yukine grabbed my collar and shook me violently.

“Nii-san is mine, right? You can’t look at anyone but me! Otherwise, I’ll die with you!”

“Stop it, please!!”

“Then promise! Nii-san can’t get aroused by anyone else but me! He can’t be infatuated with anyone else but me!!”

“Why does it have to be like that?!”

What kind of taboo must I violate to be subjected to these conditions?

Despite my bewilderment, Yukine’s determination only grew.

“From now on, Nii-san belongs only to me! Isn’t that right?”

Yukine approached me with a frighteningly beautiful face.

“I’m scared! Stop looking at your brother like that!”

“Nii-san is my brother, but also my betrothed!”

“What are you saying?!”

“Anyway! Nii-san must love only me!”

“If I fall in love with someone else, is it not allowed?”

“It’s not allowed!”

“Why not?!”

Even though Yukine’s ideas are clearly absurd, her persuasive power is overwhelming.

As I caught my breath, Yukine exhaled and stared at me with a serious expression.

“Why wouldn’t you? Nii-san, you love me, right?”

“Eek?! W-Well, I do love you… but, that’s just sibling—”

“Then it’s fine, isn’t it? As long as I’m here.”

“But, you know? We’re sibl—”

“It’s just a formality, it doesn’t matter, right?”

“N-No, but we’re si—”

“It doesn’t matter, right?”

“…Yes.”

It’s said that when a beauty gets angry, it’s frighteningly so, and that’s exactly true. 

What I once thought of as Yukine being like a cute, small animal now seemed like a fierce carnivore.

Yukine maintained her intimidating aura but then flashed a genial smile.

“But don’t worry. I’ll make sure to satisfy Nii-san properly, okay?”

“O-Oo.”

“I’ll always listen to everything Nii-san says, and of course, I’ll fulfill any l*wd requests you have, too. Whether it’s your favorite cosplay or something more extreme, I’ll do it all.”

“Hey, stop revealing my tastes out of nowhere!!”

“Cosplay… extreme…”

“Imariiii!!!”

Imari backed away from me with widened eyes. Yukine leaned in even closer.

“I’ll give you everything I have, Nii-san. So, won’t you give me everything too? Please?”

“W-Well, you see… there’s something I’d like to say―”

“Puhaa♡”

“Aa…..”

“Fufu, Nii-san, you pervert♡”

Yukine, with eyes completely turned into hearts, hugged me.

My face was buried in Yukine’s—yes, her br***ts.

“Wha——?!”

“(W-What’s this?! What’s with this overwhelmingly euphoric sight and sensation?! Wait, Yukine’s br***ts are surprisingly big… They’re incredibly soft and smell so nice… I kind of want to stay like this forever…)”

And once again, my eyes met with Imari.

Imari’s face contorted, and she let out a sigh.

“N-No! This is…”

“Nii-san, look only at me!”

“Uh-huh…”

She squeezed me even tighter, and all my strength drained away.

Truly, men are weak creatures. Even though she’s my little sister, when she uses her br***ts as weapons, I can’t do anything.

“Right? You can do whatever you want with me from now on, so love only me—Okay, Nii-san?”

Yukine said with a devilish smile.

I struggled desperately, but I could do nothing but be buried deeper.

—And thus, the story finally

On the way back home,

Gazing at the city now dyed in the hues of the setting sun, I found myself lost in thought about what had just happened.

“(I might have acted a bit too immaturely…)”

Regret flooded over me.

I hadn’t anticipated the little sister becoming like that.

“This situation has gotten pretty messy…”

Alongside regret, a sense of urgency welled up within me.

The appearance of such a formidable opponent had my heart constricted.

Afterword

Thank you for reading this far!

The long prologue has ended, and now we’re finally getting into the story after collecting the title!

From here on out, more and more unique characters will appear, so I’d appreciate it if you could enjoy it with a “yokai war” vibe (o^―^o)smile

If you found it even a bit interesting, I’d appreciate your follow and star ratings!

I’ll also be posting new works, so don’t forget to follow the author!

Well then, until next time~ (Sent from Indonesia)