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 54

I quickly stole the spare key to the Yamada house from my Onee-chan’s room, slung the backpack I had prepared over my shoulder, and had my mom drive me to niisan’s house.

I snuck into the empty house while he was at his club activities, and, just as I had planned, I transformed Yamada-mama’s cozy bedroom—one I had had my eye on for a while—into my own. I planted my belongings around the house, making it seem like I was one of the residents. (The disguise itself would continue as I gradually carried it out without my niisan noticing.)

And an hour later, I reunited with niisan.

As expected, Maika-chan had reincarnated as well, but that was irrelevant as long as I could carry out the plan.

Besides, among the many scenarios I had envisioned, this wasn’t the worst-case one. Of course, the best-case scenario would’ve been Maika-chan not reincarnating at all or at least arriving after niisan. But I couldn’t be too greedy.

Since the two of them reincarnated at the same time, niisan would naturally bring Maika-chan to this house. I had anticipated this, and it actually worked in my favor to maintain my pretense of being ‘Riko Yamada.’

Without me having to do anything (even if I deliberately acted resistant), Maika-chan would end up staying here. As long as I didn’t send her back to the Hyakunogi family, I could continue pretending to be niisan’s real sister for a while.

Honestly, I wasn’t too concerned even if only Maika-chan found out.

Because I believed that if I created the impression of, “Well, if I’m not really niisan’s sister, then I can steal him from you and make him my husband♪,” Maika-chan would panic and hide the truth from niisan.

Just as I had realized I couldn’t win against Maika-chan, she also misunderstood that niisan valued me more than her. Well, I had carefully manipulated things to make her believe that.

So, even in the worst-case scenario where Maika-chan found out I wasn’t ‘Riko Yamada’ but ‘Riko Hyakunogi,’ I could still manage.

Though, in reality, things didn’t go so smoothly.

Maika-chan tried to hide it, but niisan saw right through her. It seems that after getting engaged, Maika-chan had become even more clumsy in love matters.

Living with niisan again after two years.

And my body had returned to how it was before I got sick, all plump and soft—just as niisan loved it. (I had worried about how hormonal changes from a different menstrual cycle might affect my softness, but it didn’t. I was still the squishy Riko-chan.)

It was a blissful time. Niisan was so captivated by me after our long-awaited reunion that I even dared to hope that maybe I could become his number one, just as I was.

But that hope was quickly shattered.

For four months, I was painfully reminded that, no matter where we were or what we did, niisan’s number one would always be Maika-chan.

It hurt. It was supposed to be a happy time, but it was unbearably painful.

I realized then that the happiest time of my life was during those two years when I was dead.

At the same time, I also realized that just dying wasn’t enough.

Maika-chan was a tenacious girl.

Even during those two years, if more time had passed, she might have won niisan’s heart back.

No, she definitely would have.

In the end, niisan would forget about me, and without Koshien or baseball, Maika-chan—who always devoted herself to him—would become his number one.

When I thought about it like that, it actually worked out that Maika-chan reincarnated alongside niisan. No, it had to happen. After all, she would never miss the chance to once again stand by Kyugo’s side and be taken to Koshien.

Wherever niisan went, Maika-chan would undoubtedly follow.

So, I was going to use that to my advantage.

I deliberately started doing things that would hinder niisan.

Of course, I didn’t want to sabotage him so badly that he couldn’t make it to Koshien, so I made sure to create only minor obstacles—ones that Maika-chan could easily cover for.

I wanted to emphasize that it was thanks to Maika-chan’s dedication that niisan made it to Koshien. I wanted to plant that idea firmly in niisan’s mind.

I also kept provoking Maika-chan, fueling her competitive spirit to make her believe even more strongly that she was the one supporting niisan the most. Well, I suppose there was some truth to that as well.

And then, I die.

The narrative I wanted to leave behind was that I died because of Maika-chan’s devotion—that their flirting and her endless care for niisan caused my death.

This time, niisan wouldn’t be able to recover. This time, he wouldn’t give Maika-chan another chance to worm her way in. He wouldn’t allow her to support him ever again. As the one and only burden on his heart, I would continue to live on within niisan.

“Niisan won’t realize how important I am unless I die. He forgets every time I’m reborn and come back to him. That’s why it was a promise I never should have kept. A promise we never should have made. I must remain something forever lost. I have no choice but to die.”

“…………” “…………”

“Even if someday, my consciousness as a ghost fades and disappears, I don’t mind. As long as I continue to exist as niisan’s number one, that alone—no, that is my happiness.”

Having said everything, Riko gently stroked my head, which was resting on her plump thighs, and smiled down at me like an angel.

But I could tell. Kneeling on her lap, with her hand patting my head, I could feel everything. The trembling of her hand, the sweat on her palm and thigh, her ragged breathing, and the pounding of her heart.

Riko had delivered her entire confession while desperately trying to suppress her anxiety and agitation.

She acted as if she was resolute, but deep down, I was sure—

“…………”

I glanced over at Maika.

Maika, oblivious to my gaze, stood there, eyes wide, mouth agape, trembling violently, and—

“No, seriously, this girl really thinks this world is a baseball game…!”

“Maika!!”

Maika quickly covered her mouth with her hands. “Oops,” she mumbled. “Oops,” my foot! What’s wrong with this girl, blurting out something like that in a loud voice!

Well, yeah.

Honestly, when I heard Riko’s heavy, heart-wrenching confession, the first thing that almost slipped out of my mouth was the same exact comment.

I mean, come on. Why does Riko think this world is a baseball game? Why has she been moving forward with such a serious plan for the past four months based on that assumption? This is a brutal baseball NTR eroge and a cruel student council NTR eroge! Oh, right. I made her think that. I had to keep her from finding out. She absolutely couldn’t know. I had been aiming for Koshien to keep my reincarnated little sister from discovering this was an NTR game.

What the hell is wrong with my idiot wife? If I let that slip, Riko will find out! You airhead! Wait, no, she’s mochi-mochi.

“Hmph, your acting is pretty obvious, Maika-chan. It’s useless. I’ve long since been certain that this world is the baseball game my father made.”

She was already convinced. I’m saved. She’s clueless too. Mochi-mochi clueless.