While I Was Shutting in My Room for One Year, My Parent Remarried and Now I’m Living Together With Super Beautiful Stepsisters

Chapter 70: Kyoko’s Request? Just the Two of Us

Kyoko and I headed over to the Snow Topps coffee chain near the station.

Snow Topps is famous for its frappes, but I always end up ordering black coffee instead of anything sweet.

N-no, it’s not like I’m trying to act all grown-up or look cool as her big brother or anything. Absolutely not!

We picked up the frappe and coffee we ordered and went to sit at one of the tables inside.

The inside of Snow Topps, with its black and dark brown color scheme, had this really calm, chill vibe.

Alright then, time to have a proper talk with Kyoko.
That’s exactly why we came here today.

“Hey, Kyoko.”

“Eek— y-yeah?”

The second I spoke, Kyoko, sitting right across from me, jumped a little. Her lips pulled away from the big straw she was using to drink her frappe.

“You really like frappes, huh? You were super specific with the customization and everything.”

“Uh, um… it’s not exactly that I like them…”

“Huh?”

“Like… even in games, y’know? It’s more like… I just get this urge to make everything exactly the way I want it, down to the tiniest detail.”

That comment sounded exactly like something a hardcore gamer would say.
Down to the tiniest detail… huh.

I kinda get that feeling, but man… that obsession’s leaking into real life too, huh.
Guess that makes sense since she’s in one of Lunares’ top clans, same as me.

“Big Brother, you can drink black coffee and stuff… that’s kinda cool.”

“Eh, you think so? Haha.”

I couldn’t help grinning a bit when she praised me like that.

“I’m really bad with bitter drinks, so I’m kinda jealous… That’s why I pretty much only get energy drinks for my caffeine…”

“Ohhh, so that’s why you’re always ordering energy drinks.”

Ever since Kyoko and the others moved in, these big cardboard boxes kept showing up regularly—and almost every single one of them was packed with energy drinks.

“Energy drinks make you gain weight, so I’ve been thinking… maybe I should switch to coffee that actually helps you lose weight instead.”

Gain weight, she says… but in Kyoko’s case, even though her chest is ridiculously huge, her waist is super tight and honestly kinda too skinny.

No matter how you look at it, it feels like all the nutrients are just going straight to her boobs.
Like… energy-drink-powered huge tits… wait, what the hell am I even thinking?

“So, um… I was thinking maybe I should try dieting.”

“D-dieting?”

“Exercise! I mean… compared to my big sisters, I’m shorter and I’ve got no stamina at all, so I’ve never really done any sports or anything… but I figured it’s about time I started.”

Even though she’s usually so reserved, Kyoko was suddenly showing this crazy amount of motivation.

Kyoko doing sports… for some reason that makes me kinda worried.

Like back at the resort pool the other day… if she starts going to the gym and ends up surrounded by guys giving her pervy looks…

“I-I was actually thinking the exact same thing! Like, I should start working out too! I’ve been a total shut-in lately, so my stamina’s dropped hard.”

“Really? Um… didn’t you used to be in the track team, Big Brother?”

“Yeah, pretty much.”

“Then… would you maybe train with me? I’d really like your advice and stuff!”

Kyoko leaned toward me, her eyes sparkling in a way I’d never really seen before.

Whoa! Even if it’s just a coincidence, Kyoko’s actually relying on me!

“Alright, leave it to me, Kyoko! Let’s start tomorrow morning!”

“Y-yes!!”

But… training, huh.

And with Kyoko… just the two of us…

Part of me was excited, but honestly? The anxious feeling was winning by a lot.

—

Chapter 71: Crazy Twist Right Before Training…!?

The day after I talked with Kyoko at Snow Topps.

Like we promised, I was supposed to start training with her first thing in the morning… or so I thought.

“Huh? She’s… not here.”

When I came down to the first floor in my tracksuit super early, Kyoko wasn’t there at all.

We literally talked about it last night—training starting tomorrow morning, around 5 o’clock and everything…

Did she seriously oversleep?

Kyoko’s always weak in the mornings and ends up running late anyway, so yeah, that’s gotta be it.

Honestly, even without working out, her waist is already super tight, and those huge boobs of hers are definitely something to be proud of, so she doesn’t even need to diet or anything.

“Sigh… guess I’ll just go back upstairs and sleep some more.”

But first, lemme hit the bathroom real quick before I head back.

I was so sure Kyoko would actually show up at 5 on the dot that I jumped out of bed at 4:30, rushed to get ready, and completely forgot to pee earlier.
Now I’m seriously at my limit—gotta go.

So I head straight to the bathroom right next to the bath area on the first floor.

And then… out of nowhere, there’s this dull thunk—like something falling—from inside the bath area.

“…!? Wait, why at this hour?”

No way… a burglar…?

Breaking in at this weird time is pretty ballsy, though…

“W-what do I do…?”

Even if it’s like this, Dad left me in charge of the house.
Protecting the three sisters and Nanoka-san is my job…

“Guess I’ve got no choice but to check.”

I rub my sleepy eyes hard, blink a couple times to wake up, steel myself, and then slam the bath door wide open.

“H-hey! Burglar—… huh?”

The second I jump into the changing area with all that determination… I see something absolutely insane.

Standing there completely naked, picking up her phone off the floor, is Kyoko.
Pure white skin, a body line so gorgeous it could belong to a gravure idol, and those heavy, swaying, massive breasts.

She’s bent forward reaching down for the phone she dropped, and her ridiculously huge boobs are dangling, swaying back and forth, looking like they’re seriously about to touch the floor… and—!

“A-aah, aaahhh! Kyaa, kyaaa!!”

Kyoko lets out a scream from inside the bath area. My brain goes full panic mode, but my body moves on reflex and I bolt right back out of there.

“S-sor—!! S-s-s-sorry Kyoko!!!”

Once I’m out in the hallway I immediately start yelling apologies toward the door.

I had no idea she was literally just getting out of the bath!!

And I… I saw Kyoko… naked…

What the hell were those gigantic boobs… wait no, that’s not the point right now!!

Why am I suddenly living out one of those classic rom-com lucky-pervert moments!?

“U-um!! I’m the one who’s really sorry, Big Brother!! Kyoko totally forgot to tell you she was taking a bath!!”

She sounds just as panicked—her voice is shaking as it comes through the door.

“I’m seriously sorry, Kyoko! I’ll do anything to make it up to you! B-but… just one thing I’m wondering—why were you in the bath?”

“Well… I thought maybe I should take a shower before we exercise… I didn’t want Big Brother to think I smell sweaty…”