Believing She Has Been Reincarnated into a Baseball Game, My Little Sister Is Aiming for the Koshien, While I Give It My All to Keep Her from Finding out That It’s Actually an Ntr Game - Chapter 5/6

Even though I say I’m going home, in this world, Maika and I live in separate houses. After all, we’re not siblings.

Still, I decided to bring Maika to my house—Yamada Kyugo’s house.

As far as I remember, Yamada Kyugo’s parents are always away. It feels like an erotic game. Well, my real-world home has been missing its parents lately too.

Anyway, it’s not a bad place for us to discuss this world and plan our next steps.

“Wait, that’s right, we aren’t siblings, are we?”

Ten minutes’ walk from the academy. That was Maika’s first comment upon reaching the house. It was more of a mutter, with a serious face. I couldn’t quite grasp the emotions behind her words, but since she let it slip, despite probably holding back other impressions like, “It’s a nice two-story house that seems relatively new,” it must hold some significant meaning for her.

Yeah, that must be it.

I have my own thoughts too, difficult to articulate. Hearing it out loud made me re-realize it.

I no longer have a sister.

“Kyugo? Hey, don’t just stand there, let’s go inside. I want to lie down for a bit.”

“Ah, right.”

Shoot, I got caught up in pointless thoughts again.

“In this world, this place should allow us to relax and let our guards down.”

After all, it’ll be a space just for us.

I’ve been tense ever since we entered this world, and I’m genuinely tired now.

“We shouldn’t just say, ‘Excuse us,’ but rather, ‘We’re home.’”

Using the key from my wallet, I unlocked the door and invited Maika in. After muttering “Sure” under her breath, she entered.

Well, I understand the feeling. We’ve been pretending to be family for so long, it’s hard to simply think otherwise when told not to.

The anxiety of returning to an unfamiliar home, where unknown family members might be waiting, is probably there.

Honestly, I’d like to live with Maika in this world too.

Living in a world where I have no family at all is—

“Ah! Niisan! Welcome home, Niisan!”

“Huh?” “Eh?”

It felt as if time had stopped.

No, maybe it actually did. If this world is a game, then stopping time is possible.

In front of me stood a sister.

Our sister ran up to us, arms flapping.

Riko, who died two years ago, was hugging me in the same sixteen-year-old form she had in life.

Ah, time hasn’t stopped. It’s moving normally.

Because Riko is sniffing my chest. Smelling me. She’s shaking her head with that small, familiar smile.

“What’s the matter, Niisan? Won’t you pet me like you always do?”

“Uh, oh, yeah.”

As I stroked her black, medium-length hair, she let out a small “kyaa” just like before. Her hair was just as silky. The warmth, the beating of her heart—it all felt just like it used to.

It’s Riko.

“Riko…! It’s Riko…!? Riko…!”

“Yes! It’s me, Riko! Your sister who loves you the most in the whole world, Riko!”

“…Uh, Riko…”

My voice was choked. My chest felt tight.

Ah, I can’t take it anymore.

“Uuuuuh… Aaaaaahhhhh! Riko! You’re so cute!”

I collapsed to my knees, crying out loud. Clinging to Riko’s pure white legs, protruding from her skirt. Rubbing my cheek against her smooth thighs.

“That crying is creepy,” Maika muttered.

Shut up. You’re not my sister, so don’t interfere.

◆　◇　◆

“Riko!”

“Yes! What is it, Niisan!”

“Riko! Riko!”

“Niisan! Riko is right here! I won’t go anywhere!”

“Riko! Riko! Riko!”

“Niisan! Niisan! Niisan!”

Sitting on the living room sofa, my beloved sister and I gaze at each other, hold hands, and confirm each other’s existence.

I have a sister.

I have a cute sister! This is the best life! Cheers to life! Cheers to the world! I’ve done it! Yahoo!

“How long are you two going to keep this up…”

From across the coffee table, an unromantic voice interrupts us. Maika is sitting cross-legged on a cushion, looking at us with a dour expression.

Really, she’s like this. Not straightforward, or maybe just shy. She would never show us tears of joy.

—Several minutes have passed since the miraculous reunion with Riko, and my mind is finally settling down.

The three of us are now in the living room, drinking chamomile tea that Riko made. Hmm, Yamada Kyugo really does live in a nice house. Well, I mean me.

Even Maika, who was initially speechless with shock, now seems to have regained her composure even more than me. She watches Riko and me being affectionate and slowly starts to speak.

“It’s really Riko, right? Why are you here? Since when?”

Well, that had to be asked, obviously.

But honestly, I’m scared. Maybe it would be happier to just accept this situation wholeheartedly without asking anything.

However, Riko, as if nothing is amiss, smiles brightly and says,

“Yes! I just entered this world a little while ago! I don’t know why! But I was surprised! I believed that Niisan would still be my Niisan even if I entered the game, but I didn’t expect Maika-chan to come into this game as well!”

“Right, Riko. Just like us, you probably don’t know why you’d reincarnate in a game either, right? Huh?”

Wait? Did my cute little sister just say something odd?

Maika seems to have noticed the inconsistency as well, furrowing her brow.

“Riko, did you realize on your own that this world is inside Kyugo’s game? By yourself?”

“Ah! Yeah! Riko, why…!?”

What? Uh? Huh? Isn’t this… kind of bad?

“Ufufu, nothing really… huh?”

Bathed in our collective gaze, Riko cutely tilts her head.

“Why was it again…? But I did check all of Niisan’s purchase history, and I knew there was a baseball game called ‘Powerful Koshien’ because it was in there! I couldn’t download it on my smartphone, so I don’t know the details, but maybe the designs of these uniforms remained in my memory!”

Proudly puffing out her chest, there’s my sister.

Hey, humanity. Isn’t my sister too cute?

“Why do you have your real sister knowing your login passwords?”

I don’t even know that myself. I’m trembling.

But well, originally I made that account to buy games to play with Riko, who couldn’t go outside much. Maybe I told her without thinking.

Yeah… no, that was close! Good thing she doesn’t know everything!

“Huh? What’s wrong, Niisan? You look so flustered. It’s just a baseball game, right? Did I get something wrong? Was I a silly sister?”

“No, you’re a super smart sister. My cute sister. No, let’s not talk about that! Speaking of uniforms, that sailor uniform could it be!”

I forcibly changed the subject. Not that I wasn’t curious about that as well.

“Yes, Niisan! I’m a high school student! Like your school uniform and look, even the enamel bag has ‘Netora Academy’ written on it! I can go to the same high school as you starting tomorrow!”

“Riko…! It’s really true!?”

Once again, we hold hands, teary-eyed. It’s an academy, not a high school, but let’s let that slide!

“Yes! Thanks to being able to enter Niisan’s game, I was able to return to my body before treatment, no, before I was sick! I’m cured! Look at my body! My hair! My skin, yes! Feel it, it’s squishy, I’m Squishy Riko-chan! I’m healthy! All the things I couldn’t do in the previous world, I can do them all here!”

“Riko!! But just to be safe, let’s go to the hospital! Let’s get health checks every day in this world!”

I hug my sister’s healthy, squishy body.

Yeah, she’s incredibly healthy. Incredibly squishy. Smells incredibly good. The same fruity scent she always had, and I’m crying again.

“Ufufu, Niisan, that tickles, I haven’t taken a bath yet so please don’t rub your nose on my neck♪ Also, every day is a bit much. I’m going to be the manager of your baseball club at high school!”

“Eh?”

My squishy sister says something unexpected, making me let out a childish squeak.

Riko, forming fists at her chest (cute), says proudly,

“Because, Niisan, that’s our promise! You said you’d take me to Koshien!”

“———”

“I’ve kept my promise to always be your number one sister no matter how many times I’m reborn. But it was thanks to you that I could keep that promise. So now, it’s time for Niisan to keep his promise with me, and this silly sister will help as much as she can! Ufufu, I love you, Niisan♪”