Reincarnated as the Promiscuous Protagonist in a Netori Game, Only to Find the Heroine, My Step-Sister, Already Threatened to Be a Submissive Slave~ Liberating the Slave and Planning to Leave Home, Yet Unexpectedly Becoming Loved by My Step-Sister~ - Chapter 13 - Sleepless Night

Chapter 13 – Sleepless Night

“Tsumugi!?”

I heard a slight scream, and my heart immediately started to ring alarm bells.

I started running in a hurry, and soon I could see the center of the commotion…

“Huh? I was just trying to touch you a bit. What are you yelling at me for, missy?”

“No, stay away… Don’t get any closer…!”

The frightened Tsumugi was retreating and two men were clinging to him.

Seriously… This is really happening…!?

Well, if this were an eroge, it would make sense…

In a way, someone like Takuma, a high school student, could be considered a fantasy. It wouldn’t be surprising to have a stereotypical delinquent trying to pick up the school’s number one beauty.

Damn it, I have to go!

Fighting against the feeling of my frozen legs, I mustered up my courage and encouraged myself. I asked myself,

Right here and now, who the hell am I?

I’m no longer an otaku or a loner.

And I’m also not the scumbag Tsukishiro Takuma.

If there is one thing that clearly defines me now, it’s only one thing.

I’m Tsukishiro Tsumugi’s brother.

It’s a brother’s job to protect his sister.

“—Oi.”

I intervened between the men and Tsumugi.

With my thick arms raised wide, I became a wall for Tsumugi.

“Nii…san…?”

“Tsumugi. It’s all right now. Don’t worry.”

I don’t really have any plans from here, but I have to look good.

Now, what do I do?

I want to avoid fist-fighting. If we start fighting, my work to clean up Takuma’s image will be lost.

I should do this as peacefully as possible.

“You guys, what are you doing to my woman…!”

Ehh?—What am I saying!?

It’s the same as when I snapped at Yuuto.

For a moment, my emotions and my anger rose by themselves, and my words became rough.

“Huh? What was that again—”

“Ah, w-wait!”

“—Huh? Y-You’re…T-Tsukishiro!?”

When I was puzzled by my own behavior, the man who had expressed his anger after I provoked him widened his eyes in surprise.

“What the hell, missy, you’re Tsukishiro Takuma’s woman!?”

Then, all of a sudden, they started to panic.

“N-No, I’m his little sister…”

“L-Little sister! F-Forgive us! We didn’t do anything to her! Please forgive usss!!!”

The men fled at a speed that would have surprised a hare, and were soon out of sight.

The situation came to an end in no time.

“Huh…?”

Though I don’t really know what’s going on… I should probably thank Takuma.

For the first time ever, I thanked him from the bottom of my heart.

I didn’t recognise any of the two men’s faces, but they probably knew me one way or the other.

No one can touch Takuma’s girl, huh…

I wonder just how much negative reputation has spread about Takuma…

“—Nii-san!”

“Whoa.”

When I was stunned, Tsumugi hugged me.

“Nii-san… Nii-san…!”

She embraced me hard and buried her face in my chest.

She must have been so scared. I could see the tears soaking through my clothes.

“Sorry, I was late.”

“It’s okay… You came to help in the end…”

Next time when I go out with Tsumugi who is too beautiful, I shouldn’t let her out of my sight, even for a short time. Let this be a lesson to remember.

“Nii-san, please pat my head again.”

“Yeah…”

I put my hand on her flaxen hair. I stroked it gently.

“As expected, I feel safe if it’s Nii-san…♪”

I continued to pet her, ignoring all the stares from those around me, until she said that she had had enough.

On the way home at dusk—

“U-Um, Tsumugi…? It’s hard to walk, so could you move a little further away from me…”

“No♪”

“H-Hah…”

Even though I had luggage in both hands, Tsumugi was clinging to my side and wouldn’t let go.

It’s very difficult to walk, though that’s just a pretext. The distance between me and my sister is becoming dangerously close. She’s acting more pampered than ever before. It’s as if she’s my girlfriend.

“Nii~san♪”

I know it was because of what happened earlier, but my heart just started beating faster.

“Nii-san is really cool.”

“Eh…? I-Is that so…?”

I don’t think my face and body match my inner self, though…

“When Nii-san came to help me, I was so happy and… My heart started going doki-doki.”

“Doki-doki…?”

“Yes. My heart was really pounding. And you said, ‘My woman’… Kyaa~♡♡♡”

Tsumugi’s cheeks turned red as she recalled that moment. Then she smiled and hugged me even tighter.

“O-Oi… I said don’t get too close…”

While my core strength is so strong that my balance never wavers, my heart rate is off the charts.

Squeeze, squeeze, squeeeeze!

Without knowing what was going on in my heart, Tsumugi put her hands around my waist and embraced me.

“Nii-san is my Nii-san.”

“Eh…?”

“My very, very cool Nii-san… My very own Nii-san.”

Tsumugi had a somewhat ecstatic smile on her face.

Even after arriving home, Tsumugi’s spoiled mode continued.

“Oh my, oh my. You two are so close~”

Seeing us, Mizuki-san said,

“I wonder if Mom should join~”

“No, you can’t. Nii-san is mine.”

“Oh my gosh, but he’s my son too~”

“No! You can’t! No means no!”

Contrary to her words, Mizuki-san looked at Tsumugi with a smile on her face.

“Then it can’t be helped. Genzo-san, let’s flirt too♪”

“Wha! In front of the kids…!?”

Out of the corner of my eye, I could see Genzo being attacked, but I pretended I didn’t see it.

“Tsumugi, are you going to redecorate your room tomorrow?”

“Yes.”

As expected, there’s no more time today.

“Need some help?”

“No, that’s okay. Instead, I will invite you to stay at my room when it’s ready.”

“Roger that. But tell me if you need me.”

In that case, I’ll play with my new companion tomorrow, my smartphone.

I might find it hard to concentrate because of Tsumugi’s room, though…

“Nii-san, Nii-san.”

Before bedtime.

As I laid on my side on the bed, Tsumugi tightly pressed her body against my back…

I could clearly feel the body temperature of the opposite sex in light clothing felt through my back.

There was no way to escape in the cramped bed.

“Once again, thank you very much for today.”

“You’re welcome.”

“You were really, really cool. I might dream about it.”

“Please don’t do that, it’s embarrassing…”

I only did what a brother should do.

It was thanks to Takuma that we were able to get rid of those pick ups.

I did almost nothing.

Still, I was a little proud that I was able to protect Tsumugi.

“Good night, Nii-san.”

“Yeah, good night.”

Luckily, I fell asleep quickly, partly because I was tired from walking around for half a day.

And then—Midnight.

“—♡ Nii~…san~ Nnn♡♡”

A muffled voice led me quietly back to consciousness.

Is this Tsumugi’s voice…?

Did something happen?

As I tried to raise myself up…

“Nnn… Nii-san♡ NIi-san…♡”

This time I was stopped dead in my tracks by a voice I heard loud and clear.

Eh…!? No way, is she…!?

Different from the usual calm, innocent and lovely Tsumugi Prayer, she let out a sexy voice as if she was enduring and troubled sighs escaped her mouth. The sound of water quietly echoed in the room. Behind me, the heat generated by her intense action soaked into my body.

“Ahn, nnn…”

No doubt about it.

This is that famous thing in eroge that you occasionally come across and feel happy about, or rather, something that you would want to see in every eroge…

The heroine’s masturbation scene!!!

But why!?

Why is this happening!?

I can’t believe that Tsumugi is comforting herself…

“Oh my, I’m being so indecent…”

Moreover, she repeatedly mumbled the word “Nii-san” over and over again…!?

“But when I think about Nii-san, I can’t help but feel horny…♡”

……!?

Did she find out I was awake!?

“I’ve never done anything like this before…”

No, it sounds like she’s talking to herself.

Tsumugi whispered sweetly as if she was talking to me in my sleep.

“It’s Nii-san’s fault… Please take responsibility for turning my body this lewd♡”

For a while after that, I could hear Tsumugi’s lustrous voice on my back. I couldn’t help but feel a reaction in the lower half of my body.

After Tsumugi fell asleep, I sneaked out of the room and dealt with the problem, but I couldn’t go back to sleep again.

(T/N: It was only a matter of time…)