Arc 1.5 – Episode 6: Little Sister’s Secret

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[Side: Rina]

When I woke up, I found myself in an unfamiliar place.

Sitting up, I realized I had been sleeping on a couch with a blanket over me.

Oh, right… I came over to visit Kakyoin-san’s house, and I must have dozed off after all the playing around.

Looking around, I saw that it was already late at night, pitch dark, and no one was around.

I really needed to use the bathroom, but what should I do…?

I guess I’ll just look for it myself.

I picked up my phone from beside the pillow and used it as a light, starting my search around the house.

This place is huge, and there are way too many rooms…

As I wandered around, I heard faint voices.

Is that Kakyoin-san’s voice?

Is she still awake? Maybe I can ask her where the bathroom is.

I followed the direction of the voice.

When I reached the door where the voice was coming from, I realized something was off.

There was no light leaking from under the door, yet I could hear the voice, and it sounded… sensual.

“Kyoichi-san…! Kyoichi-san!”

Huh? Is Kyoichi-niisan here too?

Wait, is this…?

I had a guess about what was happening in that room.

Honestly, I should’ve just turned around and left, but curiosity got the better of me. I carefully, quietly opened the door just a crack.

Inside the room, illuminated by the moonlight coming through the window, I saw three figures on the bed.

Kyoichi-niisan was pinning down Kakyoin-san, while Ichigo-nee was clinging to Kyoichi-niisan.

Oh my god, they’re actually having sex!

Wait, is this a threesome?!

I remember hearing about Kyoichi-niisan’s double relationship being officially accepted, but I never thought it would be this intense!

I’d read some of my brother’s secret porn mags before throwing them away, so I had some knowledge of these things, but what I was seeing now was way beyond anything in those books.

Kyoichi-niisan’s cock is huge.

I used to take baths with my brother until I was in sixth grade, but this is way bigger than anything I remember.

I ended up just watching the three of them have sex, completely absorbed in it.

And then, suddenly, Ichigo-nee’s eyes met mine.

“Eek!”

Terrified, I turned and ran away.

I opened a random door and, luckily, it was the bathroom. I turned on the light and sat down on the toilet.

Oh no… My favorite panties that Kyoichi-niisan bought me are wet, and my fingers are sticky…

I was touching myself without even realizing it…

I felt a bit disgusted with myself.

But that was… amazing.

Maybe a guy as handsome as Kyoichi-niisan can’t be satisfied with just one girlfriend?

…I wonder if they’re accepting a third.

[Side: Ichigo]

Rina-chan, who we took in from the Nagaoka family to become Kyo-kun’s new stepsister, warmed up to us so quickly it was almost disappointing.

She must have been so poor when she lived with the Nagaokas that all it took was a few treats and buying her some necessities to completely win her over.

Is she really this easy?

I used to think Aria-chan was the easiest one, but Rina-chan broke that record.

Sure, I bought her clothes, makeup, a smartphone—some pretty high-end stuff—but I chose what she needed based on quality.

By my standards, I wasn’t even trying to win her over, nor did I intend to. But it just turned out that way.

Unexpected, but in a good way.

And since I had Kyo-kun pay for everything while keeping my own money a secret, Rina-chan looked at Kyo-kun with admiration.

It must have been the handsome guy bonus, plus the rich guy bonus.

All those hours making money online really paid off.

Apparently, Rina-chan went back to the Nagaoka house and ended up having a fight with Nagaoka-whatever-his-name-is.

She said it was because of some bad rumors about Kyo-kun.

When she explained it to me, she was completely on Kyo-kun’s side, and her words clearly put Nagaoka down compared to Kyo-kun.

I never imagined she’d go this far before I even made a move.

At this point, Rina-chan will choose Kyo-kun over Nagaoka without me doing anything special.

Nagaoka-whatever, how does it feel to lose your sister?

Then Aria-chan invited everyone over to her place.

Not just Kyo-kun—she invited me too, and suggested we stay over. I can see right through her intentions.

She can’t get Kyo-kun to herself unless I’m there.

After we played around for a while at Aria-chan’s place, Rina-chan fell asleep first.

She must’ve been tired from being around new people and being in an unfamiliar house.

After we laid Rina-chan down on the couch, Kyo-kun and I were invited to Aria-chan’s bedroom.

Hearing that, both of us thought, “Of course.”

While we were getting it on, I noticed the door was slightly open, and my eyes met Rina-chan’s.

She quickly ran away, though.

It seemed like Kyo-kun and Aria-chan didn’t notice.

I felt a pang of “oh no” about getting caught, but I was planning on setting up something like that in the future anyway, so I wasn’t too worried.

Still, I have no intention of letting Rina-chan get close to Kyo-kun for now.

What I want from Rina-chan is for her to compare Kyo-kun and Nagaoka, and show Nagaoka how much better Kyo-kun is.

Rina-chan is thrilled to be Kyo-kun’s little sister, to be out of her poor lifestyle, and to live this dream-like life. With things going this well, there’s no need for me to let her get any closer to Kyo-kun just yet.

I mean, she doesn't seem entirely against the idea, and I want to have my own fun with her, so I do plan on letting her eventually.

Probably after she gets into our high school next year?

Next are the two girls clinging to Nagaoka-whatever.

There are lots of ways to handle them, but I need to be somewhat selective.

Given Kyo-kun's role as our main piece, his feelings are important, and now that he's dating Aria-chan, we need to be more mindful of his reputation.

Plus, on a fundamental level, Kyo-kun can't get it up without me, so our options are naturally limited.

Using blackmail to get what we want is an option, but honestly, it's my last resort.

Getting involved in crime just to get back at someone could easily lead to repercussions, and not just for me, but for Kyo-kun too. It's too reckless to be worth it.

It’s almost like playing a game on hard mode.

I feel bad for using Kyo-kun like this, but at least he gets to have fun with cute girls.

I can't forgive that guy this time.

I’m going to crush him.

When the second semester starts, I'll begin setting things up with the two girls, and by the time we're in our second year, I'll make it all blow up alongside the stuff with Rina-chan.

Nagaoka-whatever, you'd better sleep with one eye open…